Your Health

Human relationships are entanglements, and those connections often aren't clear to us at all. When Maria Bamford impersonated her mom, she realized what she loved about her — and about herself.

As vessels become more porous, researchers say, they allow toxins in the bloodstream to reach, and damage, delicate brain cells and raise the risk for dementia.

Returning immediately to demanding physical or mental activities after a concussion can be bad for the brain, neuroscientists agree. But what about after symptoms resolve? How much rest is best?

The D.C.-based smartphone tool connects people with a ride to the hospital and a team of medical professionals trained in dealing with sexual assault. But students aren't rushing to download the app.