The Importance of Body Paralysis During REM Sleep
During the rapid eye movement (REM) phase of sleep, the body undergoes a remarkable process of temporary paralysis. This phenomenon serves a crucial purpose, preventing individuals from physically acting out their dreams and potentially risking injury. A comprehensive study conducted by the esteemed University of Toronto reveals that two specific brain chemicals collaborate to induce this temporary paralysis. These chemicals, known as glycine and GABA, play a pivotal role in effectively shutting off motor neurons in the skeletal muscles.
Eye Movements in REM Sleep
During the rapid eye movement (REM) stage of sleep, the eyes exhibit movement similar to when they are actively observing something. This phenomenon is not limited to individuals with sight, as even blind individuals experience eye movements during REM sleep. Although they do not have visual dreams, the brain still becomes stimulated in a way that simulates visual perception. Several studies aim to determine whether these eye movements are a result of scanning images in dreams or if they serve another physiological purpose. Nevertheless, researchers observe that the eye movements during REM sleep bear resemblance to the eye activity observed when individuals are presented with or prompted to recall images while awake.