Basic rest activity cycle
Encyclopedia
The Basic Rest Activity Cycle is a human biological cycle of approximately 90 minutes that is characterized by different level of excitement and rest. The cycle is controlled by the human biological clock
. It is best observed in stages of sleep, for example, REM and the delta activity cycle.
Biological clock
Biological clock may refer to:* Circadian rhythm, living organisms' adaptations to solar related rhythms* Age, as a general factor of female infertility...
. It is best observed in stages of sleep, for example, REM and the delta activity cycle.