Suprachiasmatic Nucleus

The Suprachiasmatic Nucleus (SCN) is a small region in the brain's hypothalamus that acts as the body’s master clock. It helps regulate your daily biological rhythms, like sleep-wake cycles, body temperature, and hormone release. The SCN receives light signals from your eyes and uses this information to synchronize your internal clock with the external environment. This coordination ensures that physiological processes occur at optimal times during the day and night, maintaining overall health and functioning.