According to sleep memory theory, dreaming sleep is essential for consolidation of memory. Daydreaming, when we're awake and ...
Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Let's talk about one ...
A psychotherapist explains why this simple relaxation method was able to help me fall asleep fast after waking up at 3 a.m.