AP BIOLOGY

Detailed explanation-1: -Circadian rhythms are physical, mental, and behavioral changes that follow a 24-hour cycle. These natural processes respond primarily to light and dark and affect most living things, including animals, plants, and microbes. Chronobiology is the study of circadian rhythms.

Detailed explanation-2: -The regulation of sleep is processed by the homeostatic physiology of the circadian rhythm, the sleep/wake cycle. Circadian rhythm is the 24-hour internal clock in our brain that regulates cycles of alertness and sleepiness by responding to light changes in our environment.

Detailed explanation-3: -Circadian Cycles. Rhythmic patterns in anger and aggressive behavior also have been documented on a circadian time scale (Figure 2). In humans, some evidence suggests that an individual’s chronotype (i.e., if one is a morning person or an evening person) is associated with expressions of anger and hostility.

Detailed explanation-4: -How does your circadian rhythm impact your mood? An irregular circadian rhythm can have a negative effect on a person’s ability to sleep and function properly, and can result in a number of health problems, including mood disorders such as depression, anxiety, bipolar disorder, and seasonal affective disorder.

Detailed explanation-5: -Melatonin is an important hormone in circadian clock synchronization. This hormone is involved in many biological and physiological processes in the body. Melatonin is a hormone that is effective for human circadian rhythms. The main role of this hormone is to maintain the circadian clock and regulate body rhythms.