KHP 1139 Lecture Notes - Lecture 3: White Noise, Narcolepsy, Excessive Daytime Sleepiness
20 Nov 2017
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Document Summary
Human"s spend about 1/3 of their lives asleep. Institute of medicine states that sleep disorders and sleep deprivation is an unmet public health problem. An altered state of consciousness in which the individuals perception of and reaction to the environment are decreased. Proper rest and sleep are as important to good health as good nutrition and exercise. Biological rhythm - exist in plants, animals, and humans; these are controlled from within the body and synchronized with environmental factors, such as light and darkness. Nrem sleep: occurs when activity in the ras is inhibited. 75-80% of sleep during the night divided into three stages. Stage 1: nrem sleep includes the lightest level of sleep stage lasts a few minutes. Decreased physiological activity begins with gradual fall in vitals signs and metabolism sensory stimuli such as noise arouses the person awakened person feels as though daydreaming has occurred.
