Concussion Boost Program

Recovery is possible – only when you address the root cause.

For people with a concussion who still experience symptoms — even after rest, therapy, and treatments.

No more endless searching for recovery methods, no more symptom management or the frustration of things not working.

Instead, an approach that truly helps your brain heal — scientifically backed and practically applicable, using specific cognitive and interval training based on neuroscience research.

Clear, concrete, and focused on real results — proven by 600+ people.

You no longer have to hope for recovery. Waiting is no longer an option — you can start taking focused action today. So you can get back to living your life with energy and clarity.

Start the program

Click here for the Dutch version.

Rest alone is not enough to recover from a concussion.

You are...

You've been on your recovery journey from a concussion for months, maybe even years.
You've seen dozens of healthcare professionals, followed therapies, taken rest, and tried to follow all the advice. Yet every day you wake up with the same brain fog, fatigue, and that relentless headache.

It feels like you're stuck in an endless cycle of symptoms, despite all your efforts.
You no longer know what to believe. Online you're overwhelmed with information — often vague, sometimes even contradictory. Because of that, you don’t know what step to take next. It feels like you’re trapped in a dark tunnel.

The stress about your future eats away at you, and you have no idea what your body is still capable of. You feel helpless. You experience mental and physical symptoms that dominate your life: anxiety, concentration problems, migraines, dizziness, depression, balance issues, and sensory overload from light and sound.

Sometimes you want to give up, but deep down you know that’s not the answer.
You're living day by day, without joy or hope, stuck in what feels like a hopeless situation.

And yet… you long for more. You want to reduce your symptoms and feel fit again.
You want to make social plans without always having to calculate whether it will be too much.
You dream of going back to work — to take away the financial stress and finally feel like you can make plans for the future.

You want to live spontaneously, without having to plan every minute around your limited energy.
You want to leave your noise-cancelling headphones and sunglasses at home because light and sound no longer overwhelm you.

And most of all: you want someone who truly understands you — and gives you a plan that actually works.

This is what you deserve. And this is exactly what’s possible.

There is a lot of conflicting advice...

Your doctor

"Please go home and rest as much as possible. Within a few weeks, you will start feeling better."

Your family/friends

"I knew someone with a concussion, and thanks to this they were healed within 4 weeks."

Your psychologist

"It’s important not to let the concussion become the main focus of your life. Concentrate on positive things."

Your colleagues

"I wish I had a day off too. Enjoy the sunshine and do some yoga; it helps me feel better."

You try everything, but you don’t feel any progress.

Your first visit to the doctor gave you hope:
“Get plenty of rest, avoid stimuli, and in a few weeks you’ll be back to normal.”

So you did as you were told. You stayed in bed, curtains closed, as quiet as possible.
But it didn’t help. On the contrary: your mind kept racing, your heart pounded restlessly, and you couldn’t sleep.

Your world grew smaller. Outside felt too overwhelming. Inside, it got dark.

You began to wonder if things would ever get better.

You tried everything — breathing exercises, supplements, Googling deep into the night.
But the flood of information only made things more confusing.

You feel alone. Misunderstood. Sad for all you’ve lost: your work, your energy, your old life.
You hardly dare to talk about it for fear people won’t understand you.

Believe me, I know exactly how that feels.
I had a concussion myself eight years ago.

And I was exactly where you are now: in a dark tunnel with no way out.

But recovery is possible. For you too.
Not by following more vague tips or contradictory advice.

But by taking truly achievable steps — explained in clear language.

What you need isn’t another healthcare provider telling you to just accept it.
What you need is clarity. Hope. A clear plan.

I am now 90% recovered.

And I want to show you what really works.

But Silvie, how are you 90% recovered then?

In June 2019, I spent $10,000 on a treatment; I went to Cognitive FX.

For me, everything changed when I went to a concussion clinic in the US and learned about specific interval training and cognitive exercises designed especially for concussion recovery.

Until then, I had mostly been resting. Avoiding stimuli, taking supplements, trying yoga and breathing exercises… but I saw no improvement. Every day the same foggy feeling in my head. Headaches. Dizziness. The fear that I would never get better.

In the US, I discovered that my brain didn’t primarily need rest, but targeted training. The method I learned there — based on the neuroscience research of Dr. Mark Allen, co-founder of Cognitive FX — finally gave me control over my recovery.

And with results:
– On day 3, I already felt a difference.
– After 1 month, I was able to make social plans again.
– After 6 months, I was back at work.
– And now? I walk outside without noise-cancelling headphones.

Because this approach helped me — and now thousands of others — so much, I want to share this knowledge with you. So you can reduce your symptoms too.

You don’t have to do this alone anymore. I will guide you step by step through the recovery process.

I’ve put my heart and soul into the Concussion Boost Program. In this program, you actively work on your recovery using the same techniques as at Cognitive FX: specific interval and cognitive training that helps retrain your nervous system and create new pathways in your brain.

No more endless rest, but targeted stimuli to train your brain and truly heal.

If this is what you want too, I can help you.

I want to heal too

Click here for the Dutch version.

I won't promiseyou the moon

I believe in realistic expectations. It’s not like you’ll recover 100% with a snap of your fingers. But I have enough experience to tell you how to recover.

90%

Recovered because of these 2 methods

8+

Years concussion
(and whiplash)

survivor myself

600+

Concussion survivors helped with interval/cognitive training

The two proven methods we focus on in the program

Both methods have been researched by Dr. Mark Allen, neuroscientist and co-founder of Cognitive FX, who developed the scientific foundation that makes this approach unique.

Method 1: Interval Training

Why is this interval training so effective for people with a concussion?

Watch the 5-minute video on why this interval training is so effective (or read the text).

Reason 1:
After a concussion, certain connections in your brain no longer function properly. It’s as if some “highways” have disappeared — which makes everything more energy-consuming and causes you to feel tired, dizzy, or overstimulated more quickly.

With interval training, your brain gets a strong boost of BDNF — a substance that helps repair damaged connections. This restores flexibility and resilience in your brain (neuroplasticity).
More BDNF = fewer symptoms.

Reason 2:
It brings your nervous system back into balance.
Many people with a concussion remain stuck in a constant ‘fight-or-flight’ state — their system is always on.

Interval training combined with breathing exercises helps you shift back into a state of calm. As a result, you’re able to relax more easily, experience fewer stress-related symptoms, and recover more quickly.

👉 You don’t need intense workouts. It’s about short, customized exercises tailored to your level — so you can still make progress without overwhelming your system.

Method 2: Cognitive Training

Why are these 15 cognitive exercises so effective for concussion symptoms?

Watch the 3-minute video on why these cognitive exercises are so effective (or read the text).

Your brain uses energy-draining detours
After a concussion, your brain becomes somewhat “confused.” Some connections temporarily stop working properly, and your brain automatically searches for another route. But these detours require much more energy. Think of it like a broken highway: you’ll still get there, but via narrow, crowded backroads — and you’ll feel it in the form of fatigue, brain fog, concentration problems, and other symptoms.

You can rebuild those connections
Your brain can recover — but it needs the right kind of stimulation. That’s exactly what the 15 cognitive exercises provide. They give your brain just enough challenge to reactivate old connections or create new ones.

As a result, information processing becomes faster and easier — and your symptoms start to fade.

You’ll train all the key brain regions, especially the ones that are disrupted, so your brain can function efficiently again and you can move forward step by step.

The goal? That your brain recovers so well, you won’t need these exercises anymore. You’re clearing the path to live with clarity, focus, and renewed energy.

What others say about the Boost Program:

For me, the biggest difference is that I’m no longer constantly stuck in fight-or-flight mode, my headaches have lessened, and I have more energy.

Lieve van Laar

It’s my sixth day in the Concussion Boost Program, and I already feel much better! Two days ago, for the first time since the accident, I felt like listening to music again. Today I woke up with almost no headache... I feel less pressure in my head when my heart rate goes up... Less fatigue, more energy 😍

Corina

Thanks to your program, I feel like I’m at 80% recovery. It’s amazing because I was probably around 40% before. It has helped me tremendously with my headaches, migraines, nausea, and more!

Nina

The Boost Program is for you if…

You’ve tried many things but still don’t see progress.

You feel overwhelmed by all the conflicting advice and don’t know what to do next.

You no longer want to do this alone. You want a clear plan, guided by someone who truly understands you, taking you from A to Z.

You’re ready to take real action. You can only achieve the results you want if you consistently follow the training.

Joan Martinez

"I no longer suffer from dizziness and headaches."

Hi Silvie, I just want to thank you for the advice to reduce the intensity of my training a bit. This week I had my best week so far. This week I will train twice and then three times the week after, and maybe I will stay at that level. I have adjusted my social routine with the intervals and neck exercises in breaks throughout the day. All my dizziness and headaches have disappeared, and I fall asleep much later in the day now, around the time I eat with the family.

Sarah D.J.

"I finally feel better than ever since the accident."

These intervals are the only training that gives me energy and does not cause symptoms. I have only been doing it for three weeks and I notice improvements: less overwhelmed by the senses, fewer triggers for panic/anxiety, I sleep through the night, less fatigue/headache.

What you get from the program

✅ You finally have the right knowledge and tools to reduce your headaches, brain fog, dizziness, overstimulation, and light-/sound sensitivity.

✅ You now know how to recover faster from setbacks and dare to think about future goals and even make plans for the future.

✅ You learn how to calm your nervous system and get out of fight-or-flight mode, so your brain can truly start to heal, even on days when the curtains stay closed and the world feels overwhelming.

✅ Not doing more, but doing smarter. From a thousand vague pieces of advice to focusing on two powerful methods.

✅ You can perform daily tasks and do things spontaneously, like grocery shopping or having conversations, without losing all your energy or having to plan every minute.

✅ You can take steps toward a social life and work, without constantly weighing whether it might be too much. You finally experience less financial stress.

Start my recovery

Click here for the Dutch version.

Hi, I'm Silvie, and here's why I'm the right person to help you.

Hi, I’m Silvie, 33 years old and I live in the Netherlands. In May 2017, I was in a scooter accident and suffered a concussion and whiplash.

It was a tough time: people often said, “You don’t look sick at all,” but inside I had never felt worse.

My friends stopped reaching out, and sometimes I stayed inside for days with the curtains closed because the world was just too much.

I couldn’t work, and my colleagues didn’t understand why I wasn’t myself yet. I felt guilty and lonely through everything I was going through.

After years of trying, searching, and struggling, I am now about 90% recovered. That long road was hard and lonely, which is why I want to help you walk it—not alone—and have the right knowledge.

That’s why I developed the Concussion Boost Program, based on the same specific interval and cognitive training I learned at a concussion clinic in America (Cognitive FX).

So far, I’ve helped over 600 people with this method. I teach you step-by-step how to calm your nervous system and actively train your brain, so you’re no longer stuck in endless rest without progress, but focused on real recovery.

With clear, neuroscience-backed tools, I help you build confidence and regain control over your energy, social life, and eventually your work.

You don’t have to do this alone—I’ll guide you from A to Z through the process.

Yes! I want to recover

Click here for the Dutch version.

This is the only online program at this price based on neuroscientific research, specially developed for people with a concussion and proven effective by thousands of others.

These people have already started the program

On impulse, I bought Silvie’s program, mostly just to read and watch it. I couldn’t imagine that I would actually do it! But I decided to give it a try anyway. From the very beginning, it helped me SO much. After 5 days, I felt SO much better! My mind feels clear, it’s like magic! This program has truly been a gamechanger for me!

Patrick

Hi Silvie! I’ve been doing your Concussion Boost program for about 4 months now, and it’s almost the only thing that has really helped me! I’m very grateful for it!

Mia Schmidt

I have less headache and can hardly believe it! Twice I felt a deep calm, and I feel like I’m slowly coming out of the fight-flight mode. That’s new for me! I really feel like things are going to change. So thankful that you developed this program!

Nina

I followed the program for about a month and found it very valuable. It gave me more insight into the brain and nervous system, and how you can train the brain out of the “fight or flight” response using breathing exercises.

I also really liked the cognitive exercises and noticed that they truly helped me..

Kerstin Weijdegard

After a short month of interval training, really?! After all the programs I followed, I didn’t expect this. But if this is the result, there is definitely progress to be made. I was surprised by what I was actually able to do.

Masjenka

I thought I was stuck because I had a serious setback. But then I started doing the cognitive exercises and that helped my brain come back to baseline, allowing me to continue with my recovery process. I really felt the wheels turning in my head with every exercise, and I still regularly go back to them. Your exercises really saved me.

Puja Suri

Inge

My headaches have decreased, I can handle stimuli better, and my energy is increasing. I slowly feel like I’m becoming more and more myself again

I’ve been doing both the interval and cognitive exercises for about three weeks now, and I’m slowly and carefully starting to notice improvements. It feels amazing, and I’m so happy about it.

My headaches have decreased, I can handle stimuli better, and my energy is increasing. I slowly feel like I’m becoming more and more myself again — and that’s such a relief.

I’m really surprised by the progress.

I recognize what you and others are describing — during the exercises, I feel a sense of clarity in my head, and I even recognize that sparkling feeling (like opening a bottle of sparkling water). It’s as if my brain is working hard to heal, but in a good way, rather than turning that effort into more headaches.

I’m really grateful that I can actively do something myself — and that it’s working.

Mentally, I’m also doing better. Instead of being stuck in a loop of fear and uncertainty, constantly worrying, I’m now able to see things more positively.

Here's what's inside the Concussion Boost Program

💻 Interval Course

Here you'll learn how to use proven interval and breathing exercises to effectively reduce concussion symptoms.

👉 This training helps restore your autonomic nervous system, calms the overactive fight-or-flight response, and stimulates the production of BDNF — a key brain chemical for recovery.

Interval training is the most effective workout for concussion recovery. It consists of short, targeted exercises combined with a specific breathing technique developed by Dr. Mark Allen from Cognitive FX.

By practicing these exercises regularly, your body learns to recover more efficiently and shift into a calm, restorative state. Consistency is key.

What will you learn?
✔ Which activities are best suited to your symptoms and situation
✔ How to manage symptoms like exercise intolerance, POTS, or dysautonomia
✔ The impact of different types of exercises
✔ When to rest — and when to safely push through
✔ The specific breathing technique used between intervals
✔ What your ideal heart rate is at rest and during training
✔ The different interval formats available
✔ How many rounds to do and how often to train each week
✔ My personal experience

💻 Cognitive Course

Here you'll discover 15 proven cognitive exercises designed to stimulate and regulate the brain regions affected by a concussion.

👉 These exercises help your brain repair damaged connections and create new ones — so that information processing becomes easier and faster, and your symptoms begin to fade.

After a concussion, certain brain connections become disrupted. In the early stages, your brain often recovers on its own. But when symptoms persist, it tends to create detours. These detours require extra energy and can keep symptoms like brain fog, fatigue, and concentration problems going.

These 15 cognitive exercises give your brain exactly the push it needs to reactivate and strengthen those disrupted pathways.

You'll train all key brain areas (especially the ones that have been affected), so your brain can function efficiently again — allowing you to reduce your symptoms step by step.

📚 Step-by-step Guides

Struggling with screen time? Don’t want to watch all the videos? No problem: skip all the info and go straight to the step-by-step guides to get started right away. You don’t have to watch everything to begin.

Download or print the guide for step-by-step instructions and less screen time.

🖨️ Option to print the full course

Struggling with screen time? No worries. The full text and step-by-step guides are available as printable PDFs with the same information as the videos.

🗓️ Shedule Examples

We offer 3 sample 3-month training plans tailored to different levels.

Interval Training:

Low-Impact: For individuals with POTS, dysautonomia, or exercise intolerance.
Medium-Impact: For those already exercising but seeking greater benefits.
High-Impact: For people who already exercise regularly with minimal symptoms.

Cognitive Training:

Low-Impact: Start gently if you have memory, cognitive, or focus issues.
Medium-Impact: Perfect for challenging yourself while taking gradual steps forward.
High-Impact: A more challenging schedule to push your progress.

✏️ Activity Log Document

Want to keep track of your intervals and cognitive training? Then use the interval and cognitive log document.

🎓Knowledge from Dr. Jessica Klain & Silvie

Part of this program is based on the expertise of Dr. Jessica Klain, a physical therapist and concussion specialist, particularly in interval training. This ensures that you always perform the right exercises at the right frequency, know what to do when symptoms occur, and find the right momentum to apply them effectively.

Because I (Silvie) truly understand what you’re going through and have helped over 600 people with interval and cognitive training, I can accurately assess how you feel and what you need to ease your symptoms. You’ll find everything you need inside the program.

Start the program:

One time payment

US$497-

2 years access to:

Interval course
Cognitive course
Step-by-step guides
Printable PDFs
Sample schedules
Logbook

Start Your Recovery

Click here for the Dutch version.

3 Monthly Installments

US$175,-

/month

2 years access to:

Interval course
Cognitive course
Step-by-step guides
Printable PDFs
Sample schedules
Logbook

Start Your Recovery

Click here for the Dutch version.

Want to learn more first? Join my free masterclass where I explain everything step by step. You can sign up here.

Mai Wang

A bubble feeling in my head is reducing my fatigue

At first, I was a bit sceptical and thought it wouldn't make a difference compared with normal exercise, but what a difference!

After doing the intervals, I feel so energized and I get a bubble feeling in my head (feels great!), which reduces my fatigue. So glad I gave it a try, thank you!

Pamela

I could only walk for a few minutes at first, but after two weeks things started to improve.

Personally, I found the program incredibly helpful in regaining my confidence in exercising, because before I started, it was almost impossible for me. I’m so happy I can work out again!

Before I began, I could only walk for a few minutes without experiencing symptoms. So, I was quite skeptical about whether this would work for me. But I saw no other option, and after reading many reviews, I decided to give it a try. It actually went better than I expected.

At first, I did experience some symptoms (which Silvie said was normal), but after two weeks it started to get better. Then I also began doing the cognitive exercises, which greatly improved my concentration.

Kevin de Vries

After a few weeks, it felt like something clicked in my head!

I started the interval training and cognitive training at the same time. I know, I was stubborn because you advised me to start with the interval training first, but I couldn’t wait, haha! I’ve learned my lesson and am taking it a bit easier now, thanks for that!

After a few weeks, it felt like something clicked in my head. In the mornings, I feel more focused and alert (which is usually difficult for me). I notice more blood flowing to my head and my nervous system feels calmer.

Ready for recovery?

How much is it worth to you to regain control over your health without constant setbacks?

You’ve already seen many healthcare providers, but symptoms like brain fog, headaches, anxiety, and sensory overload persist. You don’t know what to do anymore, feel powerless, and struggle with your energy.

Imagine being fit again, without having to plan everything. Making social plans without stress, going back to work, and daring to plan your future. Light and sound no longer bother you, and you have someone who truly understands and guides you.

You know rest alone isn’t enough; your brain needs active training. Recovery is possible if you take the right steps with professional support.

If you’re reading this, I know you want change.

Not slow, years-long recovery — but a BOOST for your healing NOW.

And for that, you’re in the right place.

Start the program

Click here for the Dutch version.

Still unsure? Read more experiences below

(Scroll down for the FAQ)

The chiropractor and his receptionist said I was more lively and alert during this session than they’ve ever seen me before.

Tara Smit

My overall wins: all symptoms have decreased and I recover faster from a setback than before.

Audrey Brown

Breathing took time to master and get used to, but I truly believe it makes a huge difference – I no longer get setbacks from movement like I used to.

Nina H.

My biggest win is that my symptoms are now much less than even a week ago. I feel like things are finally turning around. As long as I don’t push myself too hard, I feel almost normal – that definitely wasn’t the case before.

Faisal Willems

Since I started interval training, my concussion symptoms have decreased. I have more energy. The day before yesterday, I even felt normal all day.

Leon Peeters

I feel better than ever since the accident. I also slowly notice other improvements, such as less sensory overload triggering panic or anxiety, and I usually sleep through the night.

Josh Smith

I’ve been doing your Boost program for over two months now and it helps me a lot – I’m starting to feel more like myself again! I just had a major setback, but recovered very quickly thanks to the interval training. The improvements from the past few months are really noticeable.

Lieke Mulder

I started the cognitive training and I really want to recommend it to everyone. It feels great, even though it’s challenging. I tried number 1, 2, 3, and 4 and then I was able to relax deeply; I felt a bubbling sensation in my head, as if I could tell that new synapses were being formed. I’m definitely continuing with this Boost program!

Nina

The most important thing is that I find medical information here that I’ve been asking my doctors for 9 years (!) – but they couldn’t help me.

Dylan D.

I just finished day four of the first week of the exercises from your cognitive program. Today it felt like something clicked.

Niko Larsen

I completed both your interval training and cognitive course, and they helped me a lot with my recovery.

Anna Hansen

My clinical director said he hasn’t seen me this well in 25 months – lively and natural.

Annette Hagen

I also started doing Silvie’s cognitive exercises. While doing them, it feels like something is being activated in my brain. It seems like I’ll be back to my old level soon.

Mark Mulder

When I started, I felt very dizzy and had a lot of headaches. It’s amazing how much easier it is now. I also feel like I’m back to my old fitness a bit. It’s nice to experience that energetic feeling in my body again.

Carolyn J.

On Wednesday, I finished my 12-week interval training! 💜 It really helped me. Thank you, Silvie. I’m currently on a small retreat and I felt normal for almost two days straight! 🌸

Necla H.

I’m celebrating two weeks of interval training and it’s making me fitter and happier! My breathing also helps a lot to manage my dizziness and hyperventilation moments.

Remco Kristiansen

I started cycling on a stationary bike and also use a trampoline. This really changed my energy level and reduced my symptoms.

Monique Vos

Interval training, breathing exercises, and cognitive exercises were crucial for my improvements. From that moment on, I started to feel better. I now do them 4x per week and I feel much clearer.

Gregg D.

I’ve done the interval and cognitive exercises twice for 12 weeks. The first time was amazing; it really helped me out of a severe setback. The second time I did it after a second concussion, and it supported my recovery during this very stressful period. I still do the exercises three times a week and notice they improve my mood, keep my mind sharp, and make my body happy.

Carolyn Jean

In July and August, I did interval training 3 to 4 times a week, every morning. It really helped me; my head felt much clearer afterwards. Thanks, Silvie!

Now, in September, I can even do a 45-minute HIIT class in the park once a week or every two weeks. I definitely couldn’t do that before!

Chris Livia

I finally started interval and cognitive training this week. The biggest improvement so far is that I notice more stable mood and emotions (which was quite a challenge since the concussion). It’s truly a boost for my confidence!

Claire Molenaar

My visual memory has definitely improved. I can now also use speech-to-text and edit, which I couldn’t do before I started!

Wendy Havekamp

Recently, I added cognitive training to my interval training and I’m noticing new improvements I didn’t expect: less anxiety, better sleep, and fewer headaches. I started about a month ago.

George Baker

Hi Silvie! I just did my first round of interval training on the bike at the gym. I feel more energetic after my workout than usual! That’s awesome to notice! A great first experience!

Fransje

It’s really amazing! The training is going so well. I’m already telling all my friends about it. I finally feel a shift (after years!!). So thank you!

Jessa Mae

I completed all fifteen cognitive exercises. I see improvements in my speed and really notice the difference on the days I do them compared to the days I don’t do interval training.

Gabriella Santos

I quickly saw lots of improvements. It allowed me to start strength training again. I also notice that I recover much more easily now. Truly encouraging!

Sofia Reyes

I’m so used to flare-ups, crashes, and who knows what else, that it’s very strange to feel like a normal person for once. My calendar is now full of interval training for the rest of the year. Today, I picked up a package and the conversation didn’t even drain me like it normally does!

Isabella

I’m surprised at how well I handled the fluctuations in my heart rate and blood pressure. I thought this would be much harder for me with dysautonomia. I definitely see improvement since starting interval training; I was even able to start the paperwork for disability benefits!

Laura Stutze

I started interval training on November 15 and cognitive exercises on January 9. My recovery was completely stuck. In August, I struggled to hold conversations and thought recovery was no longer possible. But since the scan in January, I’ve made the most progress! Super exciting!

Monique

Last week, I drove a car again for the first time since the accident, and it went well. Things are going so much better! I could hardly believe it was possible again. It means the world to me. And the best part: I didn’t get a headache afterwards. It’s quite amazing how little effort those short interval workouts take.

Amara Clark

This week, I did three workouts and it took less time to recover. I’m also listening to more music and notice that my headaches and migraines are decreasing. My head feels less foggy. I really missed that feeling!

Melanie Mijnheer

In the past two weeks, I feel more energy and less fatigue. It’s also getting easier to sit in front of a screen and talk with other people. I enjoy the little bubbles in my head – the feeling that something good is happening!

Lieve van Laar

I’d like to start by saying how thankful I am for you and your program. I’ve been struggling with so many symptoms for years. Since I started interval training on a stationary bike, I’ve slowly built up my stamina and noticed massive improvements. Less brain fog, less dizziness, less seasick feeling, lower heart rate, etc. I’m so grateful!

Amanda

So many improvements! One of the unusual symptoms I experienced daily was numbness in my face. This has significantly decreased. I have more energy and haven’t had any “couch days” for nearly four weeks – that’s amazing! I can now work behind my computer for longer and plan multiple activities in a day instead of limiting myself to just one.

Bonnie

I had a 3-hour Zoom call without nausea or headaches. I can hardly believe it! Yesterday, I had a three-hour meeting with my son’s teachers and had to drive 6 km back afterwards – and it went just fine! A year ago this was really impossible. The light also seems less bright now; for once I didn’t have to ask if they could dim it. And the best part: I didn’t get a migraine or any backlash afterwards. I can hardly believe what’s happening! So happy!

Nina Meijer

I want to improve too

Click here for the Dutch version.

Eric G.

A clear moment I haven’t felt in 7 years!

First of all, I want to say how happy I am that I started the program.

Today is day 3 of my interval training. I was already exercising, but I applied the adjustments from the program — with success! I immediately felt changes from the start. For the first time, I wasn’t tired after visual exercises, and my stomach didn’t feel restless like it usually does.

On day 2, I had a clear moment after interval training — something I haven’t felt in 7 years! I was able to walk faster without getting symptoms. I’ve struggled with that for years. Now I know that my autonomic nervous system couldn’t properly deal with increasing speed.

Oh, and it was also the first day in 4 years that I felt energetic all day. That’s something new!

Today, on day 3, I had only half the symptoms after the intervals.

Wendy Mclean

Wendy went from feeling demotivated and always experiencing symptoms after exercise, to doing intervals three times a week without any symptoms.

I started a few months ago and it has helped me a lot. I felt stuck, and exercising was a big struggle. That made me feel demotivated quickly, and I would have a setback every time I tried.

I slowly started interval training by walking briskly, and now I can do it three times a week (on the bike, without symptoms!).

What I’ve noticed: less headache, less fatigue, more energy, and less sensory overload.

Hana Park

"To my surprise, I started feeling better very quickly."

To my surprise, I started feeling better very quickly. Since I always tend to overdo it when I feel good 😅, I went on to do a fairly intense strength workout. I felt strong and really good. At home, I was even able to do the cognitive exercises. After that, I rested well. What progress! I also slept great!

Tom Nilsen

"My migraines have improved. I can actually stop a migraine attack with interval training now."

I started Silvie’s interval program and my migraines have improved. I can actually stop a migraine attack with the interval training now. I could hardly believe it. 😆

This morning, for example, I felt a migraine coming on again, so I put on my workout clothes and did my training. Now I don’t have a migraine anymore, just a “small” headache. 🙂

Amy S.

Amy went from daily headaches and brain fog to waking up with a clear mind.

Amy struggled with the most ‘normal’ things and tasks: having conversations, going to the supermarket, making phone calls, driving, controlling her emotions, doing more than one task a day — and on top of all that, she suffered daily from headaches, fatigue, and migraines.

In short, Amy no longer enjoyed her life; she was just surviving.

Doctors told her she had to accept her situation and learn to cope. But after starting the program, she transformed from someone who was always at home into someone who enjoys her social life again.

She no longer has daily headaches, her migraines have decreased, and she has just started driving again. She now wakes up every day with a clear mind instead of brain fog.

Frequently Asked Questions

When can I start?
You can start immediately after purchasing the program. The interval and cognitive courses are available on demand, and you get 2 years of access.
How quickly will I see results?
The frustrating answer is: every concussion is different. I wish I could guarantee results, but unfortunately, I can’t predict the future. What I do offer is all the proven and researched information about the two methods that have led many people to quick improvements.
You need to take the steps yourself to achieve results. It really comes down to applying the knowledge I share with you.
That said, we know what we’re doing: we have helped over 600 concussion survivors reduce their symptoms with these courses.
We recommend these two methods because we fully stand behind them, based on the results achieved.
70% of participants reported positive changes in their symptoms within the first week or month. Those who don’t feel an effect in the first month often experience clear improvements later, because recovery sometimes just takes more time.

Can I start this program if I have POTS, dysautonomia, or sports-related issues?
Yes, you can start, but it’s important to begin interval training gently.
We offer a special low-impact schedule tailored to people who have difficulty moving, focusing on meeting minimal recommendations rather than pushing for maximum intensity.
Gradually increasing intensity as you feel comfortable is key.
Often we push ourselves too hard or do the wrong things, which throws the body further out of balance. By building up carefully and getting the right stimulus (don’t worry, you’ll learn this in the program), progress is definitely possible.
You’ll also find valuable guidance from Dr. Jessica Klain in the course about managing exercise tolerance, POTS, and dysautonomia. Many participants facing these challenges have achieved great results by combining interval training with cognitive exercises.
Wherever you are, there’s a way to make this work for you. The first step is: start.

I’m nervous about investing money; I’ve tried a lot already. Is this the right investment and a good step for me?
I completely understand — investing in yourself can be scary, especially if you’ve tried many treatments that didn’t seem to work. Many of those treatments might not even be specifically researched for concussions.
Investing in specialized, evidence-based methods can lead to real recovery.
If you don’t take the next step, nothing changes in your approach and you might not see the improvement you hope for. General treatments are often overwhelming and only provide temporary relief without addressing the root cause of your symptoms.
Many treatments are also poorly researched, and many doctors don’t fully understand concussions. There’s so much misinformation online, and people end up trying random things hoping they’ll work. I don’t support that approach because it often just costs money, energy, and time.
The Concussion Boost Program is the only online program where you get knowledge that is proven, researched, and specifically focused on concussions — all at this price.

Why choose your program instead of sessions with a therapist?
This program is based on neuroscience research and specifically designed for people with concussions to achieve maximum results.
Instead of just going to multiple physiotherapy sessions, you also need sessions with a cognitive therapist specialized in concussions.
This program saves you:
- Time searching for the right therapists who really know what they’re doing.
- Money, because a single session often costs over €50.
- (Travel) stress, time, and energy, because you don’t have to go to fixed appointments repeatedly.

Screens are difficult for me to tolerate. What do you advise?
I totally understand. I personally struggled a lot with screens too. That’s why I tried to make your recovery easier.
Instead of you having to search for information, I gathered everything for you.
I offer all the knowledge you need about cognitive exercises and interval training in these courses. I worked hard to make them simple and easy to follow. You can listen to most lessons or read and print the texts.
Don’t want to watch videos? That’s fine. Both courses have step-by-step guides you can print and start immediately
These cognitive exercises don’t require a computer; we use everyday items like post-its, balls, and playing cards, together with printable PDFs and audio recordings.

In what format is the program available?
The program is available in both video and text formats, so you can choose what works best for you. If screen time is an issue, you can easily listen to the videos instead of watching.
You’ll also receive printable PDFs of the entire course.
You always have access to the program via your computer, tablet, or phone.
How much time does this program take?
Within the online environment, you can watch all videos, which takes about 3.5 hours. Or you can skip the videos and go straight to the step-by-step guide to start immediately. You don’t need to watch all the videos to begin.
Ultimately, the goal is to apply what you learn, and that’s where most time is spent. It’s most effective if you do the exercises at least 2 times and up to 5 times per week.
We recommend starting with interval training, and once you master that, you can begin the cognitive training.
One interval training session often lasts only 10 minutes, and a cognitive session can be done in that time as well. So about 20 minutes total.
What about the neuroscience research?
Dr. Mark Allen researched specific interval training and cognitive exercises. He is a neuroscientist and co-founder of Cognitive FX (the concussion clinic I attended and where I learned everything about these two methods). He developed the scientific foundation for concussion patients, which makes this approach unique.
I have had multiple conversations with him, and he reviewed this program to ensure all information is accurate.
It’s a strategy that delivers proven results, providing not only temporary relief but also long-term benefits. Thousands of other concussion patients have applied interval and cognitive training to reduce their symptoms.

Do I have to do these exercises for the rest of my life?
No, you do the exercises as long as you notice improvement. The goal is to reset your brain, which means you might need a little push at first. It’s important to do the exercises regularly in the beginning so your body can eventually take over and you need them less over time.
Usually, you’ll know when you can reduce them. If you need help or want to discuss when to taper off, feel free to ask!
The goal is to reach a point where you no longer need these exercises. We teach our body it’s okay to relax. We do interval training (which raises your heart rate) followed by breathing exercises (which bring it down again). Each time you do this, you signal to your body that it’s safe to relax. We go from fight-or-flight mode to rest-and-digest mode.
We need that little push now, but the more consistently you do it (that’s why we recommend at least twice a week), the more your body will eventually regulate itself.
Most people notice a difference after a few months and find it easier to come out of fight-or-flight mode without the intervals. Once you notice this, you can slowly taper off.
Do you give medical advice?
I do not give medical advice; everything is based on what I’ve learned from concussion experts (research by Dr. Mark Allen), experiences of others who followed these exact steps, and my own experience.
If you have questions I can’t answer, I always consult a qualified doctor so you get the right advice.
If you’re unsure whether this program is suitable for you, always consult your doctor before starting.
By participating, you agree you have read, understood, and accepted the disclaimer.

I don’t have a concussion but another brain injury. Can this program still be useful for me?
Because many symptoms overlap, this program can also be helpful for people with stroke, carbon monoxide poisoning, long COVID, or other brain injuries.
If you’re unsure if this program is right for you, feel free to email me at [email protected], and I’ll gladly help you figure it out.
Do I need to buy anything else to start the program?
There are a few things that make it easier to do the exercises, but they are all optional. Usually, we work with items you already have at home, so you don’t need extra costs.
For interval training, a heart rate monitor and stopwatch can be useful but are optional if you don’t want or can’t get them.
For the cognitive course, you’ll need some post-its, a tennis ball (or something else to throw), and a deck of cards.
A balance board can be helpful for multitasking and balance exercises, but you can also stand on one leg instead.
So, not much is needed to start.

Can I get a refund if the program doesn’t work for me?
If you don’t apply our advice and take action, results will be minimal or non-existent. We are 100% dependent on that. That’s why we can’t give guarantees.
You need to give it time (usually 1-2 months) to see results; it doesn’t work in one day.
Because you get immediate access to all materials, we don’t offer refunds.
We have confidence in our program, and more than 600 people have started with good results.
While we can’t guarantee exact results because everyone is different, our program is based on methods that have helped many others reduce their symptoms.
If you’re unsure if this program is right for you, always consult your doctor before starting.
Do you work with or are affiliated with Cognitive FX?
No, I do not work with Cognitive FX, but they have thoroughly reviewed the program to ensure all information is accurate. They fully support what I offer.
While we don’t collaborate, we each do our own thing independently.
They support this because my program also raises awareness for them. Additionally, I have referred many people to them by sharing my experience with their treatment, so we both see it as a win-win.
They are mentioned on my website, and I am mentioned on theirs.
Many people started with my program and experienced such great improvements that they decided to go to Cognitive FX afterward, impressed by the results.
Others initially wanted to go to Cognitive FX but chose to try my program first, and that was enough to continue their recovery.

You have many positive clients, are there ever people who don’t see results?
Yes. And any practitioner who says “no” is not being fully honest. The truth is: I am always dependent on you. If you don’t follow our advice, we can’t expect results. But if you follow the plan as outlined in the program, results are inevitable—and that’s exactly what we’ve seen time and time again.

Here are some results from previous participants in the program:
✅ Sarah shared that she finally felt better than ever since her accident. These intervals were the only training that gave her energy without leaving her symptomatic for days.
✅ Laura noticed a difference in her dizziness and anxiety within just two weeks, and felt fitter, clearer, and happier.
✅ Amy experienced her first day feeling “normal,” without headache or fatigue—a feeling she hadn’t remembered in years.
✅ Mark saw his brain fog significantly decrease after just three weeks, and he could once again tackle tasks he had previously avoided.
✅ Sophie noticed improved concentration and memory, allowing her to read, work, and have conversations without overwhelming her brain.

I recommend taking a moment to check out our client success stories to get a complete picture.

Recovery is possible.

Don't get stuck on vague advice. Start with two proven methods.

Start Today

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Jessica

I've been following your Boost program since the end of May. It's hard to make time three times a week with two kids, but after a few weeks, I suddenly noticed that I wanted to listen to music in the car again, and I can now play music at home for the kids too. I'm also going to bed later in the evening and feel less extremely tired!