What happens when we sleep , The Economist

Sleep is central to maintaining your physical and mental health, but many people don t sleep enough. We all do it, but what happens to us when we sleep Click here to subscribe to The Economist on YouTube: Every night almost everyone on the planet enters into a state of unconsciousness and paralysis but what is really happening inside the body when we drift off, and what s the impact if we don t get enough sleep Sleep is regulated by your circadian rhythm, or body clock locate