SCN (Suprachiasmatic Nucleus)

The Suprachiasmatic Nucleus (SCN) is a small region located in the brain's hypothalamus, responsible for controlling the body's internal biological clock. It helps regulate daily cycles such as sleep and wakefulness by receiving light cues from the eyes and coordinating hormones and body functions accordingly. Essentially, the SCN acts as a master timer, ensuring that various bodily processes occur at appropriate times throughout the 24-hour day, maintaining our natural rhythm and overall health.