By Sharmain Cornette. âAbout two percent of the patients who undergo open-heart surgery worldwide end up with a stroke.â This notion was amplified yesterday by Chief Executive Officer of the Caribbean Heart Institute (CHI), Dr Gary Stephens, during an interview with this newspaper.
Dreams mainly occur in the rapid-eye movement (REM) stage of sleepâwhen brain activity is high and resembles that of being awake. REM sleep is revealed by continuous movements of the eyes during sleep. At times, dreams may occur during other stages of sleep. However, these dreams tend to be much less vivid or memorable. The length of a dream can vary; they may last for a few seconds, or approximately 20â30 minutes.
(Day dreaming/thinking). Dreams have different lengths during the time of sleep, the first ''episode'' is always the shortest that can last from 1/2minutes to 10min and then dreams progressively increase. The last dream is the longest and it can last up to 20min. We usually have about 2 or 3 dreams if someone ever fells like they've had more it's just because a ''memory effect''. Dreams take place during an electrophysiological state of sleep, so called REM sleep (rapid eye movement).