For decades, researchers knew that growth hormone surges during deep sleep. What they didn’t have was a live recording of the brain machinery that makes it happen. A team at UC Berkeley has now ...

For decades, scientists knew sleep healed the body but could only watch the aftermath: hormones rising in the blood, muscles knitting back together, memories settling into place. The machinery itself ...

Your eyes ache, your body feels heavy and the alarm is already beginning to loom over the night, yet your brain refuses to ...