A lack of sleep can induce anxiety

Brain activity is altered in people spending the night awake

sleepless woman

TOSSING AND TURNING  A sleepless night led to higher anxiety levels in healthy people, as well as brain changes that mirrored those in people with anxiety disorders.

Marcos Mesa Sam Wordley/Shutterstock

SAN DIEGO — A sleepless night can leave the brain spinning with anxiety the next day.