Washington, D.C. Votes To Legalize Recreational Marijuana. In yet another blow to the United States' decades-long war on drugs, the nation's capital has legalized recreational marijuana, NPR and USA Today reported Tuesday night.
What happens every time we get a bit of shut eye? Sleep occurs in a recurring cycle of 90 to 110 minutes and is divided into two categories: non-REM (which is further split into four stages) and REM sleep. Non-REM sleep. Stage one: Light Sleep. During the first stage of sleep, we're half awake and half asleep. Our muscle activity slows down and slight twitching may occur. This is a period of light sleep, meaning we can be awakened easily at this stage.
Sleep scientists believe that sleep paralysis may occur when the transitions in and out of REM sleep and other sleep stages don't go smoothly. The paralysis that is typically confined to REM sleep spills over to other sleep stages -- and if you wake, you become aware of your body's paralysis, and the frightening feeling of being unable to move or to speak.