The Concussion Recovery Myth: Why "Cocooning" Can Hurt, Not Heal

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Sep 05, 2025By Sara Etheredge


For years, the standard advice for anyone with a concussion was to go into "cocooning" mode: rest in a dark room, avoid screens, reading, and any form of mental or physical activity until all symptoms were gone. The idea was to give the brain complete rest to heal.

While this advice came from a good place, recent research has completely turned this thinking on its head. Today, we know that prolonged cocooning is not only unhelpful, it can actually be a risk factor for a longer, more difficult recovery.

The Research Behind the Change


The old advice was based on early studies and the idea that the brain, like any other injured body part, needed total stillness to repair itself. However, more recent research, particularly in the last decade, has shown that the brain benefits from a gradual, controlled return to activity.

Studies published in journals like Sports Medicine and the British Journal of Sports Medicine have found that a short period of rest (typically 24 to 48 hours) is all that's needed. After that, a very gradual and supervised return to light physical and mental activity can actually speed up recovery.

When the brain is completely shut off from stimulation, it can lead to negative side effects like:

  • Increased anxiety and depression: Social isolation and the feeling of being "stuck" can take a significant toll on mental health.
  • Brain deconditioning: Just as your muscles weaken without exercise, your brain's pathways can become deconditioned without controlled stimulation.
  • Prolonged symptoms: Restricting all activity can make the brain hypersensitive to normal stimuli like light and sound, causing symptoms to flare up more easily when you finally try to return to your normal life.


A Smarter Path to Recovery: What to Do Instead


Instead of cocooning, modern concussion care focuses on a controlled, gradual return to activity, often with the guidance of a physical therapist. This is often called a "return to activity" protocol.

1. The First 24-48 Hours: Relative Rest

This is the only period of true rest. Avoid strenuous activities, limit screen time, and get plenty of sleep. You should still do normal, daily tasks like light walking or having a quiet conversation.

2. After 48 Hours: Start to Re-Engage

This is where the physical therapy comes in. Under a professional's guidance, you can begin light, symptom-limited activity. This might include:

  • Light aerobic exercise: Think of a gentle walk on a treadmill or a stationary bike. The goal is to get your heart rate up slightly without making your symptoms significantly worse.
  • Balance and vision exercises: A physical therapist can prescribe exercises to help retrain your brain and improve your balance and visual tracking, which are often affected by a concussion.


The key is to listen to your body, and understand that some mild symptom flare-ups are a normal and expected part of the rehabilitation process. In physical therapy, we often use the "2-point rule." This means it’s okay to increase your symptoms by up to 2 points on a 10-point scale from your baseline level. For example, if your headache is at a 3 before an activity, it's safe to continue as long as it doesn't go above a 5. If your symptoms begin to increase by 3 or more points, it's time to take a break and let them calm down before resuming activity.

By taking a proactive, gradual approach, you're helping your brain regain its strength and tolerance for daily life. Cocooning can feel like the safest option, but the latest research shows that a smart, active recovery is the best path back to feeling like yourself again.