What changes in the human brain during sleep?
Although sleep appears to be a passive and restful time, it actually involves a highly active and well-scripted interplay of brain circuits, resulting in sleep’s various stages.These stages were discovered in the 1950s through experiments using electroencephalography (EEG) to examine human brain waves. Researchers also measured movements of the eyes and the limbs. The results of these experiments were telling.… Read More »