Sleep consists of two distinct states: REM (rapid eye movement) sleep and NREM (non-REM) sleep. Dreaming occurs mostly in REM sleep.
Sleep is a cyclic phenomenon, with four or five REM periods during the night, which accounts for about 25 percent of the total night’s sleep.
Examples Of Sleep...
The New York Times reported on August 31 that the air traffic controller involved in the tragic Comair flight, which killed 49 people, was... Read more »
Sleep apnea is a disorder that causes the cessation of breathing many times during the night. That is, someone suffering from sleep apnea... Read more »
I don’t know how many nights I have lain awake worrying about something I did, something I need to do, or something disastrous that’s... Read more »
Lately, I have been talking a lot about difficulty sleeping, particularly insomnia. We have covered that topic fairly exhaustively, so I... Read more »
Most people are familiar with the after effects of a night or two without sleep. Without sleep, people are less efficient and more... Read more »
BASICS:A shift worker is anyone who follows a work schedule that is outside of the typical "9 to 5" business day. In the past few decades the United... Read more »
Transcept Pharmaceuticals, Inc. has submitted an application to the Food and Drug Administration for a new prescription sleep medication for people... Read more »
About 72 percent of all Americans experience insomnia, but five specific sleeping disorders can make sufferers fearful of falling asleep. Sleep... Read more »
Source: ADAM Encyclopedia
Sleep disorders involve any difficulties related to sleeping, including difficulty falling or staying asleep, falling asleep at inappropriate times,... Read more »