Most adults with a concussion recover fully with a straightforward plan: rest for the first 48 hours, manage pain carefully, and gradually return to normal activities over the following weeks. About 85% of people are back to normal within 28 days. The key is knowing what to do in those first hours and days, what to avoid, and when the situation calls for emergency care.
Danger Signs That Need Emergency Care
Not every bump to the head requires an ER visit, but certain symptoms signal a more serious brain injury. Call 911 or go to your nearest emergency department if you or someone you’re with develops any of these after a head injury:
- Seizures or convulsions
- Repeated vomiting
- A headache that keeps getting worse and won’t go away
- Slurred speech, weakness, numbness, or loss of coordination
- One pupil noticeably larger than the other, or double vision
- Increasing confusion, agitation, or inability to recognize familiar people or places
- Loss of consciousness, increasing drowsiness, or inability to stay awake
These can appear within minutes or develop over several hours. If you’re watching someone who hit their head, pay close attention during the first 24 hours.
The First 48 Hours
Current guidelines recommend 24 to 48 hours of both physical and cognitive rest after a concussion. That means no exercise, no work, and minimal mental effort. This short window of genuine rest gives the brain its best chance to begin healing.
Screen time matters more than you might think during this period. A study published in The Journal of Pediatrics found that people who avoided screens for 48 hours after their injury had a median recovery time of 3.5 days, compared to 8 days for those who used screens freely. Putting your phone down, staying off your laptop, and skipping TV for two days is one of the most concrete things you can do to shorten your recovery.
Keep the environment calm. Dim lights if bright light bothers you, and stay in quiet spaces if noise feels uncomfortable. You don’t need to lie in a dark room the entire time, but avoid anything that makes your symptoms flare up.
Sleep and the “Wake Them Up” Rule
You’ve probably heard that you should wake someone with a concussion every two hours through the night. That advice is outdated. There is no evidence that waking someone up after a concussion helps them recover faster or prevents complications. Rest is a crucial part of healing, so interrupting sleep is actually counterproductive. Aim for a full eight hours.
What you can do is quietly check on the person to make sure their breathing looks normal and they’re resting peacefully. You don’t need to wake them to do this. If their breathing becomes abnormal, wake them and seek medical attention immediately.
Managing Headaches Safely
Headaches are the most common concussion symptom, and your choice of pain reliever matters. Acetaminophen (Tylenol) is the recommended option. Avoid ibuprofen (Advil, Motrin) and aspirin, because both can increase the risk of bleeding in the brain after a head injury. This is especially important in the first 48 hours when a small bleed might still be developing. If your headache doesn’t respond to acetaminophen or keeps getting worse, that’s a reason to seek medical evaluation.
Returning to Daily Activities
After the initial 48-hour rest period, you can begin easing back into routine daily activities, as long as they don’t provoke symptoms. The principle is simple: try a small increase in activity, give it 24 hours, and if your symptoms don’t worsen, move to the next level. If symptoms flare up, step back to the previous level and wait another day before trying again.
For physical activity, the progression follows a six-step framework. You start with light aerobic exercise like 5 to 10 minutes of walking or using a stationary bike. From there you move to moderate activity with more head movement, then heavier non-contact exercise like running or regular weightlifting. Contact sports and competition come last. Each step gets at least 24 hours before you advance.
Getting Back to Work
Returning to work often presents its own challenges, particularly for jobs that involve heavy screen use, concentration, or physical demands. Some people can return within a few days with minor accommodations. Others need a more gradual transition over several weeks.
Practical workplace adjustments that can make a real difference include:
- Rest breaks throughout the day, a shortened schedule, or a later start time
- Reduced screen time on computers and tablets
- Access to sunglasses or earplugs if light and noise are bothersome
- Extended deadlines for completing tasks
- Temporary reassignment to duties that don’t worsen symptoms
- No driving, operating machinery, or heavy physical work until cleared
Your healthcare provider can write specific recommendations for your employer. Many of these accommodations are temporary, lasting only a few weeks until symptoms resolve.
What Recovery Actually Looks Like
The old benchmark was that half of concussion patients recovered within 14 days, but more recent research from the University of Michigan suggests the timeline is longer than that. At 28 days, about 85% of people have fully recovered. That means roughly one in six adults will still have symptoms after a month, which is normal variation rather than a sign that something has gone wrong.
Typical symptoms during recovery include headaches, dizziness, fatigue, trouble concentrating, difficulty sleeping (or sleeping too much), irritability, and sensitivity to light and noise. These tend to improve gradually rather than disappearing all at once. You might feel fine in the morning and foggy by afternoon, or have a great day followed by a rough one. That uneven pattern is common.
When Symptoms Last Beyond Three Months
If symptoms persist longer than three months, the condition is called persistent post-concussive symptoms. This can include ongoing headaches, dizziness, fatigue, poor concentration, memory problems, anxiety, depression, sleep disruption, blurry vision, ringing in the ears, and neck pain. The combination varies from person to person.
Persistent symptoms don’t necessarily mean your brain injury was more severe. Factors like your history of previous concussions, pre-existing mood disorders, and how aggressively you pushed yourself early in recovery can all influence how long symptoms linger. Treatment at this stage typically involves targeted approaches: vestibular therapy for dizziness, cognitive behavioral therapy for mood symptoms, and structured exercise programs to rebuild tolerance. A provider who specializes in concussion management can help sort out which symptoms need which interventions.