AP PSYCHOLOGY

Detailed explanation-1: -Our circadian rhythm approximates a homeostasis. View Source in coordination with environmental cues like sunlight. Because of our circadian rhythm, our alertness level. View Source dips and rises throughout each 24-hour period, impacting the amount of sleepiness and wakefulness we experience during the day.

Detailed explanation-2: -The circadian regulation of sleep and cognitive performance refers to the near 24 h period cycle present in alertness and sleepiness. During daytime hours, alertness is high and sleepiness is low, whereas the opposite occurs during nighttime.

Detailed explanation-3: -Circadian rhythms can influence important functions in our bodies, such as: Hormone release. Eating habits and digestion. Body temperature.

Detailed explanation-4: -Many also experience periods of peak alertness, usually occurring between 9am to 11am and 7pm to 9pm. These cyclical periods of sleepiness and alertness are due to the circadian rhythm.

Detailed explanation-5: -Circadian alerting system. An internal circadian pacemaker-dependent signal that promotes wakefulness and thereby inhibits sleep. As such, the circadian alerting system is one of the main processes that regulates sleep behavior in humans.