AP PSYCHOLOGY

Detailed explanation-1: -The circadian clock has an internally driven 24-hour rhythm that tends to run longer than 24 hours but resets every day by the sun’s light/dark cycle.

Detailed explanation-2: -Normal people have a circadian rhythm that is slightly longer than 24 hours. Every day, morning light and other behaviors reset the sleep-wake clock to a 24-hour schedule. Without light and this clock resetting, people’s sleep time will drift later and later.

Detailed explanation-3: -For most healthy adults, the circadian clock will reset every 24 hours.

Detailed explanation-4: -Regulation of circadian period in humans was thought to differ from that of other species, with the period of the activity rhythm reported to range from 13 to 65 hours (median 25.2 hours) and the period of the body temperature rhythm reported to average 25 hours in adulthood, and to shorten with age.

Detailed explanation-5: -Get bright light first thing: Bask in natural light for at least 10 minutes as soon as possible after waking up. Make it 30 minutes if it’s cloudy or if you’re sitting by a window. This way, your SCN will signal to your brain it’s daytime, suppress melatonin production, and reset your circadian rhythm for the day.