Essay on Sleep

Sleep is defined as the regular state of natural rest observed in all mammals, birds and fish. Sleep is not actually "unconsciousness," but rather, it is a natural state of rest characterized by a reduction in voluntary body movement and decreased awareness of the surroundings. But, what is the importance of sleeping? What purposes does it serve besides time for the body to be inactive? Some experts believe that sleep is a period in which the brain figures out problems, arranges data, and restores chemical imbalances within the body. …