Harvard reference system essay

Each of us has a biological clock that regulates the circadian (meaning "about a day") rhythm of sleeping and waking. This internal clock — which is located in a small bundle of brain cells called the suprachiasmatic nucleus and gradually becomes established during the first months of life — controls the daily ups and downs of biological patterns, including body temperature, blood pressure, and the release of hormones. Although the clock is largely self-regulating, it responds to several cues to keep it set properly, including light and melatonin production.

Harvard reference system essay

harvard reference system essay

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