Endogenous Pacemakers

Endogenous pacemakers are internal biological systems that regulate our body's natural rhythms, such as the sleep-wake cycle. They are internal clocks, like the brain's suprachiasmatic nucleus (SCN), that produce and maintain regular patterns of activity without external cues. These pacemakers help coordinate biological functions, ensuring sleep, alertness, and other processes happen at appropriate times each day. They work in conjunction with exogenous factors, like light, to adjust and synchronize these rhythms with the environment, ensuring our internal timing stays aligned with the external world.