Healthy Mind (Page 3)

Sleep. why do we sleep

Ever wondered why we need to sleep on a regular basis? While you may correctly say that you go to sleep because you are tired, there is actually a lot more to it than drool production and the cultivation of morning breath. There are five stages of sleep. stages 1 to 4 and REM or Rapid Eye Movement. These stages progress from 1 through to REM and then start at 1 again with a complete cycle taking approximately 90 to 110 minutes. Just like hunger thirst and sexual desire, sleeping is a physiological need and drive. But if sleeping does not serve a biological function then itRead More →