Introduction
Human beings experience different biological rhythmic changes when they are sleeping or dreaming due to different experiences during the day. We all have internal biological clocks that are called endogenous pacemakers these are controlled by the environmental factors that are known as the exogenous zetgebers. These factors are responsible for making sure that the period changes are controlled. The rhythms that are connected with sleep and dream are circadian, ultradian, and REM also known as rapid eye movement.
Circadian rhythms
The circadian rhythm the period it takes is a whole day experience. One example that is commonly known is the sleep wake ...
