Are multiple concussions a problem?

Years ago, experts weren't sure if multiple concussions led to structural damage to the brain. NINDS Director Walter J. Koroshetz, MD, explains how new brain imaging tools are revealing that concussions cause such harm.

A concussion is easier to miss than you think unless you know the signs.

Research shows that girls may be at higher risk of concussions than boys, but why?

An overview of early-stage and late-stage diabetic retinopathy, with a look at diabetic macular edema.

If you are living with nasal polyps, answering these questions may help you better understand your experience.

Learn why hypertension in older adults is linked with stroke and dementia.