A concussion makes the brain move suddenly inside the skull after a head hit or a hard body blow. Symptoms can last days to months. Most symptoms start improving within 1 to 2 weeks of the injury, ...

A person with a concussion may have dilated pupils, droopy eyelids, or difficulty tracking objects. Sometimes, these symptoms are obvious, but not always. Assessment tools can help a doctor check for ...

If you have a concussion, the best thing to do is rest, drink water, and eat healthfully. Avoiding screens and bright lights can also help. In some cases, you may have a more serious injury that needs ...