What to Do for a Concussion in a Teenager

If your teenager has a concussion, the first step is a brief period of relative rest for one to two days, followed by a gradual return to normal activity guided by symptoms. The old advice of lying in a dark room for days or weeks is outdated. Current international guidelines are clear that strict rest and isolation actually slow recovery, and that light activity, including walking, can begin within 24 to 48 hours of the injury.

Most teens recover from a concussion within two to four weeks. What you do during that window matters. Here’s a practical guide to managing recovery at home, at school, and on the field.

Know the Danger Signs First

Most concussions don’t require emergency care, but some symptoms signal a more serious brain injury. Call 911 or go to the emergency department if your teenager develops any of the following after a hit to the head:

  • Seizures or shaking
  • Repeated vomiting
  • One pupil larger than the other, or double vision
  • Slurred speech, weakness, numbness, or poor coordination
  • Increasing confusion, restlessness, or inability to recognize people or places
  • A headache that keeps getting worse and won’t go away
  • Loss of consciousness, inability to wake up, or inability to stay awake

These can appear minutes to hours after the injury. If your teen seems fine at first, continue checking on them. You do not need to wake them repeatedly throughout the night unless a healthcare provider has specifically told you to, but it’s reasonable to check that they’re breathing normally and can be briefly roused before you go to sleep yourself.

The First 48 Hours: Relative Rest, Not Total Rest

For the first one to two days, the goal is relative rest. That means your teenager can move around the house, eat meals at the table, have short conversations, and go for a gentle walk. What they should avoid during this window is anything physically or mentally intense: hard exercise, long study sessions, and extended screen time.

The international consensus statement on concussion, published in 2023, is explicit on this point. Clinicians should avoid prescribing absolute physical and cognitive rest, sometimes called “cocooning.” Lying in a dark, quiet room for days doesn’t help the brain heal and can actually increase the risk of symptoms dragging on longer than a month. Even during the initial 48-hour rest period, activities of daily living, including walking, are encouraged.

Screen time should be limited in those first one to two days. There is no specific hour-by-hour rule. The practical approach is to let your teen use a phone or computer briefly when needed, but to cut out marathon scrolling or gaming sessions. After the first 48 hours, the evidence suggests that restricting screens further provides no additional benefit, so your teen can gradually increase use as long as it doesn’t significantly worsen their symptoms.

Why Early Light Exercise Helps

One of the biggest shifts in concussion care over the past several years is the move toward early aerobic exercise. A randomized clinical trial of 13- to 18-year-olds found that starting light aerobic activity within the first week after concussion sped up recovery and reduced the chance of symptoms lingering beyond a month, compared to a stretching-only program.

After the initial 48-hour rest window, your teen can begin light activity like walking, easy stationary cycling, or slow jogging for five to ten minutes. The key rule: the activity should not cause more than a mild, brief increase in symptoms. “Mild” generally means no more than a slight uptick in headache or fatigue that resolves within an hour of stopping. If symptoms flare up more than that, stop and try again the next day at a lower intensity.

This isn’t about pushing through pain. It’s about giving the brain controlled, gentle stimulation that promotes healing. Think of it like physical therapy for a sprained ankle: complete immobilization makes things worse, but careful movement helps.

Getting Back to School

Returning to school matters just as much as returning to sport. The goal is to minimize academic and social disruption while respecting your teen’s symptoms. Most teenagers can go back to school within a few days, sometimes with temporary adjustments in place.

Work with the school to set up a plan. Ideally, one person at the school serves as the point of contact for you and your teen’s teachers, so accommodations are applied consistently throughout the day. The specific supports depend on which symptoms your teenager is experiencing.

For Thinking and Memory Problems

Reduce assignments and homework to essential tasks only. Allow extra time for tests and limit testing to one exam per day. Provide class notes or let your teen record lectures on their phone. Base grades on adjusted work so your teen isn’t penalized during recovery.

For Headaches, Light, and Noise Sensitivity

Let your teen wear sunglasses indoors or sit away from windows if light is bothersome. Provide a quiet space for studying, testing, or lunch. Build in rest breaks during the day and allow extra time between classes to avoid crowded, noisy hallways. Permit visits to the school nurse when headaches flare.

For Mood and Emotional Changes

Identify a trusted adult at school your teen can talk to if they feel overwhelmed. Have a quiet room available as a retreat. Emotional ups and downs are a normal part of concussion recovery, and having a plan in place before a bad day hits makes a real difference.

As symptoms improve, the school gradually removes these accommodations until your teen is back to their full routine. This typically happens before they return to sports.

The Return-to-Sport Protocol

Returning to athletics follows a structured, step-by-step progression. Each step takes a minimum of 24 hours, and your teen should only move forward if they can complete a step without significant symptom worsening. A healthcare provider needs to give the initial green light before this process begins.

  • Step 1: Back to regular daily activities, including school, with no sport-specific activity.
  • Step 2: Light aerobic exercise only. Five to ten minutes on a stationary bike, walking, or light jogging. No weightlifting.
  • Step 3: Moderate activity that increases heart rate with body or head movement. Moderate jogging, brief running, reduced-weight lifting.
  • Step 4: Heavy non-contact activity. Sprinting, high-intensity biking, full weightlifting routine, sport-specific drills without contact.
  • Step 5: Full practice with contact, in a controlled setting.
  • Step 6: Return to competition.

If symptoms return at any step, your teen drops back to the previous step for at least 24 hours before trying again. Rushing this process is the single biggest mistake families make. A second concussion before the first has healed can cause dramatically worse outcomes.

Watch for Emotional and Mental Health Changes

Concussion recovery isn’t just physical. Teenagers who develop persistent symptoms, those lasting beyond a month, face a significant mental health burden. In a study of 200 adolescents with ongoing post-concussion symptoms, 40% reported clinically significant depression, 25% reported significant anxiety, and 8% reported thoughts of suicide.

The reasons are layered. A concussed teenager is often pulled away from the things that define their daily life: their sport, their social circle, their academic confidence. Not being able to play, struggling in class, and spending less time with friends can create a sense of hopelessness, particularly in teens whose identity is closely tied to athletics. Some also develop anxiety about whether they’ve suffered permanent damage.

This is why total isolation during recovery is so counterproductive. Keeping your teen connected to their team, their friends, and their school routine, even in a limited way, protects against this spiral. If you notice persistent sadness, withdrawal, irritability, or any mention of self-harm, bring it up with their healthcare provider. These symptoms are treatable, and they’re far more common after concussion than most families expect.

Sleep During Recovery

Sleep is one of the most powerful tools for brain recovery, and concussion often disrupts it. Your teen may feel drowsier than usual, have trouble falling asleep, or wake up frequently. Encourage a consistent sleep schedule and protect their sleep environment: keep the room dark, cool, and quiet, and limit screens in the hour before bed. There is no set number of extra hours to prescribe. If your teen’s body wants more sleep than usual in the first week, that’s generally fine and can be beneficial. The concern isn’t sleeping too much during recovery; it’s the inability to be woken, which falls under the emergency signs above.

What Recovery Looks Like Day by Day

Recovery is rarely a straight line. Your teen might feel great on day three and lousy on day five. That’s normal. Symptoms tend to fluctuate based on how much physical and mental exertion happened that day, how well they slept, and sometimes for no obvious reason at all. The overall trend matters more than any single day.

During the first two days, expect reduced activity and more rest. By days three through five, most teens start light walking and short periods of schoolwork. By the end of the first week, many are back at school with accommodations. By weeks two through three, most are progressing through the return-to-sport steps. By four weeks, the majority of teenagers have fully recovered.

If your teen still has symptoms after four weeks, they fall into the “persistent symptoms” category. This doesn’t mean something is permanently wrong. It does mean they would benefit from a more targeted approach, often involving supervised aerobic exercise prescribed at a specific intensity, cognitive behavioral strategies, and closer monitoring of mood. A healthcare provider experienced with concussion can guide this phase.