Top 10 Concussion Misconceptions

Despite major advances in concussion science, myths and misinformation still cloud the way concussions are understood, diagnosed, and managed.

These misconceptions can delay recovery, increase risk of long-term symptoms, and prevent athletes, parents, and even healthcare providers from making fully informed decisions.

Here is a quick overview of the 10 of the most common concussion myths — and what the research really says. If you’re looking for a deeper dive into this topic, check out the full article.

❌ Myth 1: You Must Hit Your Head to Get a Concussion

Truth: Concussions occur due to the rapid acceleration and deceleration of the brain inside the skull. This can happen from a whiplash, body check, or fall — even without direct impact to the head.

🔗 What Happens to the Brain During a Concussion?

❌ Myth 2: You Need to Lose Consciousness

Truth: Less than 10% of concussions involve loss of consciousness (1). More common signs include confusion, dizziness, nausea, and headache.

🔗 What to Do After a Concussion

❌ Myth 3: You Should Rest in a Dark Room Until You Feel Better

Truth: While brief rest (24–48 hours) is important, prolonged rest can delay recovery. Subthreshold aerobic activity — like walking or light biking — has been shown to help reduce symptoms and speed healing (2).

🔗 When is Rest NOT the Best Advice?

❌ Myth 4: If Your CT or MRI Is Normal, You Don’t Have a Concussion

Truth: Concussions are functional injuries, not structural. They don’t show up on routine imaging. Diagnosis is made clinically, based on symptoms and neurological assessment.

🔗 Can You Diagnose a Concussion with Imaging?. They don’t show up on routine imaging. Diagnosis is made clinically, based on symptoms and neurological assessment.

❌ Myth 5: Concussions Only Affect the Brain

Truth: Many post-concussion symptoms stem from neck injuries, vestibular issues, visual dysfunction, or autonomic nervous system imbalance — not the brain itself (3).

🔗 Is My Neck Causing My Symptoms?

❌ Myth 6: Once You’re Symptom-Free, You’re Fully Recovered

Truth: Symptom resolution doesn’t always equal physiological recovery. Studies show that up to 15% of symptom-free athletes still fail exertion or visual testing — meaning the brain isn’t fully healed (4).

🔗 Return to Play After a Concussion

❌ Myth 7: One Concussion Means You Can’t Ever Play Again

Truth: Most people recover fully and return to sport. However, recurrent concussions with shorter recovery windows may increase the risk of long-term complications. Individualized assessment is key.

🔗 How Many Concussions Is Too Many?

❌ Myth 8: You Can’t Treat a Concussion — You Just Have to Wait It Out

Truth: Active rehab approaches — including vestibular therapy, vision training, and subthreshold aerobic exercise — are now standard care. Early intervention improves outcomes (5).

🔗 Why Your Symptoms Won’t Go Away — including vestibular therapy, vision training, and subthreshold aerobic exercise — are now standard care. Early intervention improves outcomes (5).

❌ Myth 9: Baseline Testing Is Just a School Policy — Not Really Necessary

Truth: Baseline testing provides objective pre-injury data to compare against post-injury results, making return-to-play decisions safer and more accurate (6).

🔗 A Complete Guide to Baseline Testing

❌ Myth 10: If Symptoms Last More Than a Few Weeks, You’re Stuck With Them Forever

Truth: Persistent concussion symptoms often stem from treatable sources — like neck dysfunction, autonomic dysregulation, or vestibular/ocular issues — not brain damage.

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