Goals and Sleep Description: Psychology has described sleep as periodic, natural, reversible loss of consciousness. Over a period of time our bodies fluctuate and so does our mind. These physiological fluctuations are called biological rhythms. These rhythms are controlled by our biological clock, or circadian rhythm. Around every 90-100 minutes we go through a series of sleep stages called cycles. When you slip into sleep you do not know you are sleeping until you wake …showed first 75 words of 915 total…

…showed last 75 words of 915 total…Both reduce REM sleep and leaves one to need larger and lager doses to gain any effect. Scientists are searching for a natural chemical that is present during sleep, hoping they may be able to mimic it and use it for a sleep aid with out having side effects. Until then relax before you go to bed, stay away from caffeine in the evening, avoid eating before bedtime, have a regular sleep schedule and exercise.