Ads
related to: 8 hour sleep cycle alternative
Search results
Results From The WOW.Com Content Network
Polyphasic sleep is the practice of sleeping during multiple periods over the course of 24 hours, in contrast to monophasic sleep, which is one period of sleep within 24 hours. Biphasic (or diphasic , bifurcated , or bimodal ) sleep refers to two periods, while polyphasic usually means more than two. [ 1 ]
Is 8 hours of sleep enough? ... When we sleep, the body cycles through four different stages of sleep, which are broken down into REM (rapid eye movement) sleep and non-REM sleep, Dr. Andrew Varga ...
More than half (56 percent) of perimenopausal women ages 40 to 59 sleep less than seven hours per night, and they’re more likely to have trouble falling asleep and staying asleep compared to ...
For premium support please call: 800-290-4726 more ways to reach us
In 2009, Ying-Hui Fu and Ptáček discovered the first short-sleep gene by identifying a mutation in the DEC2 gene that resulted in an average of 6.25 hours of sleep a night instead of 8.06 hours, an identifying feature of FNSS. [12] This was the first genetic discovery for this sleep trait, broadening the scope of familial sleep trait research.
Cycles of REM and non-REM stages make up sleep. A normal healthy adult requires 7–9 hours of sleep per night. The number of hours of sleep is variable, however the proportion of sleep spent in a particular stage remains mostly consistent; healthy adults normally spend 20–25% of their sleep in REM sleep. [5]