Brain Fog After Concussion: Why It Happens & How Athletic Therapy Helps

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Struggling with brain fog after a concussion? Learn why it happens, why it can linger, and how hands-on care can help your brain and body settle.
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You’re standing in your kitchen, staring at the cabinet, but you can’t remember what you came in here for. You read the same paragraph three times and still don’t know what it says. Someone asks you a simple question and your brain just stalls.

If you’ve had a concussion, you know this feeling. Brain fog isn’t just forgetfulness. It’s like thinking through thick clouds, where everything takes more effort and nothing feels clear.

And when it doesn’t go away weeks or even months after your injury, it’s exhausting and scary. Brain fog after a concussion is real, it’s common, and there are ways to support it.

What brain fog feels like

Brain fog isn’t a medical diagnosis. It’s a term for a group of cognitive symptoms: trouble concentrating, memory slips, slowed thinking, difficulty finding the right word, mental fatigue that feels overwhelming, and a “spaced out” or disconnected feeling. Tasks that used to be easy suddenly take real effort.

After a concussion, it can make work hard, school overwhelming, and simple conversations tiring. You might look fine on the outside while your brain is working overtime to keep up.

why concussions cause brain fog

A concussion changes how your brain works in several ways at once. Inflammation can interfere with how efficiently brain cells communicate, like static on a phone line. Your brain also needs more energy than usual to recover, at a time when its energy balance is disrupted, which helps explain the tired, foggy feeling and why you can crash after mental effort. Blood flow to parts of the brain can be affected, and your nervous system can get stuck in a protective “fight or flight” state, where it favours survival over clear thinking.

Why it can Linger

If the concussion was weeks or months ago, it’s natural to wonder why the fog is still there. In many people, the nervous system never fully settles. The same forces that affect the brain usually affect the neck and jaw too, and the tension and restriction that develop there can keep sending your nervous system distress signals. Over time, your body builds compensations around the injury, such as muscle guarding, a forward head posture, and shallow breathing. These patterns can keep your system on high alert and make recovery harder.

This is also why brain fog often doesn’t respond to rest alone. Rest is important early on, but it doesn’t address the tension and movement patterns that may be keeping things stuck.

how i help

Manual Osteopathy Neck Treatment Port Coquitlam Brynn Bicknell

When someone comes to me with lingering brain fog, I look at the whole picture: how your neck and jaw move, where your fascia is restricted, how you breathe, and whether your nervous system is still guarding. Treatment is gentle and built around what I find.

 That usually includes hands-on work to release tension around the neck, jaw, and base of the skull, using myofascial release, osteopathic techniques, and Bowen Therapy. It also includes work on breathing and posture, support for lymphatic flow, and guided movement and balance work. We also pace your activity so you can rebuild your tolerance for mental effort without crashing.

What to Expect

Many people notice they feel calmer and sleep better within the first few sessions. Over several sessions, concentration often improves and mental fatigue eases. Everyone’s timeline is different. If you’ve had brain fog for months or years, it usually takes longer than if we start early, but it can still improve.

What you can do at home

While hands-on care gives you the most support, a few things help in the meantime:

when to get help

Don’t wait for brain fog to clear on its own if it’s affecting your work, school, or daily life, if it’s been more than two to three weeks since your concussion, or if tasks that used to be easy now leave you exhausted. Getting support early can keep symptoms from becoming long-lasting.

You don't have to live with brain fog

One of the hardest parts is feeling like you’re not yourself. You know you’re capable, but your brain won’t cooperate. You’re not losing your mind, and there’s usually something underneath that can be addressed.
I help people with brain fog after a concussion throughout Port Coquitlam, Burnaby, Coquitlam, and the Tri-Cities.
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Hi, I'm Brynn! Welcome.

I’m here to help you move, recover, and feel your best.

Check out these practical tips for pain relief, concussion recovery, and whole-body wellness from your local Port Coquitlam & Burnaby Athletic Therapist.

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