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Dolphins sleep with one-half of the brain at a time, closing one eye while floating or swimming about.
1993) correlated sleep with the stage and markers of HIV illness and with psychosocial factors in 68 patients.
This essay introduces one such possibility toward furthering the historical investigation of sleep and also associating changes in sleep with a major shift in American social experience.
In two Phase I/II studies using the traffic noise model of insomnia in healthy male volunteers, EVT 201 significantly reduced "wake after sleep onset" (WASO) while significantly increasing "total sleep time" (TST) and quality of sleep with no subjective residual effects.