The suprachiasmatic nucleus directs your circadian rhythms primarily in response to ____.

Question

Quizplus · Accepted Answer

The suprachiasmatic nucleus (SCN) directs circadian rhythms primarily in response to light. The SCN receives input from specialized cells in the retina that detect light and adjusts the body's clock accordingly. This is why exposure to bright light in the morning can help reset the body's natural rhythm and improve sleep at night. Sleep, food, and noise can all have an impact on circadian rhythms, but it is primarily light that regulates the SCN.

The Suprachiasmatic Nucleus Directs Your Circadian Rhythms Primarily in Response