Biological clocks are organismsā natural timing devices. There are several such biological clocks, which are controlled by a master clock in the brain ā SCN (suprachiasmatic nucleus).
Many physiological processes in our body are controlled by the biological clock and show circadian rhythmicity. ( Appear at regular time in the day ā 24 hours)
Biological rhythm (BR) is a phrase often used interchangeably with circadian rhythm. These rhythms are a series of bodily functions (physical processes) regulated by the bodyās internal clock. They control cycles likeĀ sleepĀ and wakefulness, body temperature, hormone secretion, and more.Ā