AP PSYCHOLOGY

Detailed explanation-1: -Polysomnography monitors your sleep stages and cycles. It can identify if or when your sleep patterns are disrupted and why. The typical process of falling asleep begins with a sleep stage called non-rapid eye movement (NREM) sleep. During this stage, brain waves slow down.

Detailed explanation-2: -Clusters of sleep-promoting neurons in many parts of the brain become more active as we get ready for bed. Nerve-signaling chemicals called neurotransmitters can “switch off” or dampen the activity of cells that signal arousal or relaxation. GABA is associated with sleep, muscle relaxation, and sedation.

Detailed explanation-3: -According to the NSF, sleep is defined as a state of consciousness that follows a pattern of specific, measurable brain wave patters, as measured by an Electroencephalogram (NSF, 2007).

Detailed explanation-4: -These repeating 24-hour cycles are called the circadian rhythm. Your body tries to align your sleep-wake cycle to cues from the environment, such as when it gets light or dark outside, when you eat, and when you are physically active.