Search results
Results From The WOW.Com Content Network
Sleep is an eight-and-a-half hour concept album based around the neuroscience of sleep [3] by German-British composer Max Richter. [ 4 ] [ 5 ] It was released on September 4, 2015, accompanied by a one-hour version with variations, From Sleep , [ 6 ] later remixed as Sleep Remixes .
Improvement to cognitive performance caused by exercise could last for 24 hours, a new study shows. Scientists also linked getting 6 or more hours of sleep to better memory test scores the next day.
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 ]
It is used to measure the time it takes from the start of a daytime nap period to the first signs of sleep, called sleep latency. Subjects undergo a series of five 20-minute sleeping opportunities with an absence of alerting factors at 2-hour intervals on one day.
Some participants in a study went 32 hours without sleep while the control participants slept normally. When tested on flexibility and originality on figural and verbal tests, the sleep-deprived participants had severe and persistent impairments in their performance. [ 4 ]
Randy Gardner (born c. 1946) is an American man from San Diego, California, who once held the record for the longest amount of time a human has gone without sleep.In December 1963/January 1964, 17-year-old Gardner stayed awake for 11 days and 24 minutes (264.4 hours), breaking the previous record of 260 hours held by Tom Rounds.
A circadian rhythm (/ s ər ˈ k eɪ d i ə n /), or circadian cycle, is a natural oscillation that repeats roughly every 24 hours.Circadian rhythms can refer to any process that originates within an organism (i.e., endogenous) and responds to the environment (is entrained by the environment).
In 2015, Richter released his most ambitious project to date, a collaboration with visual artist and creative partner Yulia Mahr [42] titled Sleep, an 8.5-hour listening experience targeted to fit a full night's rest. The album contains 31 compositions, most of them 20–30 minutes in duration, all based on variations of 4-5 themes.