GROSS ANATOMY

Detailed explanation-1: -Although circadian clocks throughout the body are synchronized in large part through the suprachiasmatic nucleus (SCN) of the hypothalamus, rhythmicity in other hypothalamic nuclei has proved to be a critical regulator of physiological rhythms such as the sleep–wake cycle and daily food intake.

Detailed explanation-2: -The circadian system modulates metabolic heat production to generate the body temperature rhythm, which challenges homeothermy but does not abolish it. Individual cells do not regulate their own temperature, but the relationship between circadian rhythms and metabolism at the cellular level is also discussed.

Detailed explanation-3: -The hypothalamus is an area of the brain that produces hormones that control: Body temperature. Heart rate. Hunger.

Detailed explanation-4: -The hypothalamus regulates a wide range of behavioral and physiological activities. It controls many autonomic functions such as hunger, thirst, body temperature, and sexual activity.