After a concussion, the most important thing you can do is rest your brain and body for the first 24 to 48 hours, then gradually return to normal activities at a pace that doesn’t make your symptoms worse. That initial window sets the tone for your entire recovery. Most people recover within 10 to 14 days, but how you manage the first few days matters more than many people realize.
The First 48 Hours
For the first one to two days, scale back both physical and mental activity. This means skipping workouts, avoiding heavy reading or studying, and keeping your environment calm. The current medical consensus recommends 24 to 48 hours of this relative rest, not days or weeks of lying in a dark room. Complete isolation and total inactivity for prolonged periods can actually slow recovery.
Avoid screens during this window. A randomized trial found that people who abstained from phones, television, computers, and video games for 48 hours after a concussion had a median recovery time of 3.5 days, compared to 8 days for those who used screens freely. That’s a meaningful difference for what amounts to two days of putting your phone down.
If you have a headache, acetaminophen (Tylenol) is the safest option for pain relief. Do not take ibuprofen (Advil, Motrin) or aspirin, as these can increase the risk of bleeding inside the skull.
Symptoms That Need Emergency Care
Most concussions resolve on their own, but certain warning signs mean you need a hospital. Call 911 or go to the emergency department if you or someone with you experiences any of the following:
- Seizures or convulsions
- Repeated vomiting
- A headache that keeps getting worse and won’t go away
- Increasing confusion, agitation, or unusual behavior
- One pupil larger than the other, or double vision
- Slurred speech, weakness, numbness, or loss of coordination
- Inability to wake up, stay awake, or recognize familiar people and places
For infants and toddlers, inconsolable crying or refusal to eat or nurse are additional red flags on top of the symptoms above.
Returning to Daily Life Gradually
After that initial 48-hour rest period, start reintroducing your normal routine in small doses. Go for a short walk. Read for 15 minutes. If your symptoms don’t flare up, do a bit more the next day. The key principle is simple: if an activity makes your headache worse, brings on dizziness, or increases any of your symptoms, stop and try again the next day.
Eating enough calories and protein matters during this phase. Research shows that patients who met their calorie and protein needs within the first 96 hours after a mild traumatic brain injury had shorter recovery times. Your brain is doing repair work and needs fuel. Focus on regular, nutrient-dense meals rather than skipping food because you feel off. Stay well hydrated, and prioritize sleep. Your brain does most of its healing during rest, so keeping a consistent sleep schedule and aiming for a full night of sleep gives recovery its best chance.
Light Exercise as Treatment
The old advice to sit in a dark room until all symptoms disappear has been replaced by something more active. Controlled aerobic exercise, started within the first week or two, can actually speed recovery. The approach is based on finding your symptom threshold: the heart rate at which your symptoms start to increase.
In clinical settings, this is measured using a treadmill test. Patients then exercise at about 80% of that threshold heart rate for 20 minutes a day, using activities like walking, light jogging, or a stationary bike. If your heart rate threshold on testing is below 135 beats per minute, that’s associated with a longer recovery timeline of more than 21 days, which helps clinicians tailor your plan.
You don’t necessarily need the formal test to apply the concept at home. Start with 10 to 15 minutes of light walking or easy cycling. If your symptoms stay stable or improve, you can gradually increase the duration and intensity over the following days. If symptoms spike, dial it back.
Returning to School or Work
Concussions affect concentration, memory, and the ability to tolerate bright lights and noise, all of which make a typical school or office environment challenging. Students recovering from a concussion benefit from specific accommodations:
- Reduced homework and assignments, focused on key tasks only
- Extra time on tests, limited to one test per day
- Permission to wear sunglasses or sit away from bright windows
- A quiet space for studying, testing, or breaks
- Rest breaks throughout the day and extra time to move between classes
- Access to class notes or permission to record lectures
For adults returning to work, the same principles apply. Shorter days, more frequent breaks, reduced screen time, and a quieter workspace all help bridge the gap between rest and full productivity. Push back into your normal routine only as fast as your symptoms allow.
Returning to Sports
Athletes follow a structured six-step progression, with each step taking a minimum of 24 hours. You only advance to the next step if you complete the current one without new or worsening symptoms. If symptoms return at any point, you drop back to the previous step and rest before trying again.
- Step 1: Return to regular daily activities like school or work, with medical clearance to begin the progression.
- Step 2: Light aerobic activity only, such as 5 to 10 minutes on a stationary bike, walking, or light jogging. No weight lifting.
- Step 3: Moderate activity that increases heart rate with body and head movement. Moderate jogging, brief running, reduced-weight lifting.
- Step 4: Heavy non-contact activity, including sprinting, full weightlifting routines, and sport-specific drills without contact.
- Step 5: Full practice with contact, in a controlled setting.
- Step 6: Return to competition.
At minimum, this process takes six days, but for most people it takes longer. Do not rush it. Returning to contact sports before your brain has healed puts you at risk for second impact syndrome, a rare but potentially fatal condition where a second concussion occurs before the first has resolved. The brain’s metabolic recovery from a concussion generally takes 7 to 10 days, and possibly longer in younger athletes. Cases of second impact syndrome have occurred when athletes returned to contact as few as five days after their initial injury.
When Symptoms Don’t Go Away
If your symptoms persist for more than three months, you may be dealing with post-concussion syndrome. The hallmark is a cluster of ongoing problems: headaches, dizziness, fatigue, irritability, trouble sleeping, difficulty concentrating, memory problems, and a reduced tolerance for stress or strong emotions. A diagnosis typically requires three or more of these symptoms persisting well beyond the expected recovery window, along with interference in your daily life at work, school, or in relationships.
Post-concussion syndrome doesn’t mean you did something wrong during recovery. Some brains simply take longer to heal, and factors like a history of previous concussions, migraines, or mood disorders can increase the risk. Treatment at this stage often involves a combination of supervised aerobic exercise programs, targeted therapy for specific symptoms (such as vestibular rehabilitation for dizziness or cognitive behavioral therapy for mood changes), and continued lifestyle adjustments. Recovery is still possible, it just takes a more structured approach and professional guidance.