“The ancient Greeks ascribed the need for sleep to the god Hypnos (“Sleep”), the child of Darkness and Night and the brother of Death, whose power, as he swept across humanity, was so great that even the gods were forced to succumb to him essay writers wanted. The prominent place of sleep in ancient mythology serves as a testament to the unequivocal importance it plays in everyday life. Everyone needs to sleep. Although researchers today have devised sophisticated means to define, describe, and detail sleep they still do not fully understand its function. However, when sleep is disturbed, the effects are dramatic and clear. Without sleep we become tired, disoriented, lethargic, mentally dulled, confused, or in extreme cases hallucinatory or assume a state resembling psychosis. Current research on sleep focuses on two main areas: basic sleep mechanisms and sleep physiology and sleep disorders in clinical medicine.”