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.
Our original intention had been to conduct a study. that induced sleep fragmentation in normal sleepers and then. evaluate changes in daytime function. However, it was unclear. from the literature at the time how much sleep fragmentation was. necessary to cause significant changes in the restorative function. of the sleep. The best available examples of sleep fragmentation. arose from the study of the sleep of patients with OSA. But in. these patients, apneas might cause very transient EEG arousals, longer EEG arousals associated with a change in sleep stage, or. even awakenings 16 seconds to several minutes in duration.