Clocks | And Rhythms

Your primary timekeeper is the , regulated by a "master clock" in the brain called the suprachiasmatic nucleus (SCN). This clock responds to external cues—primarily light and darkness —to signal when it’s time to be awake and when it’s time to sleep.

But it’s not just in your head. Almost every organ has its own "peripheral clock". Your liver, heart, and even your skin follow their own schedules, all trying to stay in harmony with the master clock in your brain. Why Rhythms Matter for Your Health Clocks and rhythms

When your internal clocks are ticking in unison, your body functions like a well-oiled machine: Your primary timekeeper is the , regulated by

Mastering the Tick-Tock: A Guide to Your Body's Clocks and Rhythms Your primary timekeeper is the