Sleep Centers of Middle Tennessee

What is Sleep?

Posted on 14 Apr 2011 - 4:09 PM

Sleep is a mental and physical state of rest, during which time the person is usually inactive. There is a relative lack of awareness of environment and, to a certain degree, the person is unaware of stimuli. Sleep is usually accompanied by a decrease in body temperature, blood pressure, respiration rate, and most bodily functions. However, one’s brain remains active during sleep. In fact, tasks such as storing of short-term memory material into long-term memory and replenishment of neurochemicals occur during sleep.