Facial nerve paralysis describes weakness in the muscles on one or both sides of your face that causes an inability or reduced ability to smile, blink, or control other facial movements. It happens ...

Have you ever opened your eyes in the middle of the night and realized you could not move a single part of your body? Your brain feels awake, but your arms, legs, even your voice, feel locked. Some ...

A UC San Francisco doctor reviews microscopic imagery in February 2017 on enterovirus D68 and its effects on children. (Paul Chinn / San Francisco Chronicle via Getty Images) A respiratory virus that ...