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Answer: True – they also sleep a lot; up to 16 hours each day. 23. Herbivores eat animals. Answer: False – herbivores eat plants. ... True or False Questions About the Human Body. 73. A human ...
While sleep differs from wakefulness in terms of the ability to react to stimuli, it still involves active brain patterns, making it more reactive than a coma or disorders of consciousness. [1] Sleep occurs in repeating periods, during which the body alternates between two distinct modes: REM and non-REM sleep.
Polyphasic sleep is the practice of sleeping during multiple periods over the course of 24 hours, in contrast to monophasic sleep, which is one period of sleep within 24 hours. Biphasic (or diphasic , bifurcated , or bimodal ) sleep refers to two periods, while polyphasic usually means more than two. [ 1 ]
One of the important questions in sleep research is clearly defining the sleep state. This problem arises because sleep was traditionally defined as a state of consciousness and not as a physiological state, [14] [15] thus there was no clear definition of what minimum set of events constitute sleep and distinguish it from other states of partial or no consciousness.
REM sleep is decreased during the first half of the sleep period and stage 1 sleep is increased in the second half of the sleep period. [5] Most antidepressants, in particular selective serotonin re-uptake inhibitors (SSRIs), such as citalopram and paroxetine, are potent inhibitors of REM sleep and may also cause a REM rebound on discontinuation.
The National Sleep Foundation says that stress, depression, daytime drowsiness, alcohol, and fever can also cause somniloquy. Experts advise sleep talkers to reduce their anxiety and develop ...