Beating jet lag
Our daily sleep cycles, behaviour, and metabolism, are regulated by a powerful master clock in an area of the brain known as the suprachiasmatic nucleus. This 'circadian' clock, located in the hypothalamus, is controlled by some special brain cells, which, in turn, are highly sensitive to daylight. The suprachiasmatic nucleus coordinates our body's internal processes with the external environment, helping us maintain a regular sleep-wake cycle.
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