Which gland regulates circadian rhythms and sleep patterns?

Prepare for the VTCT Level 2 Facial and Skincare Test. Revise with flashcards and multiple choice questions, accompanied by insightful explanations. Ace your assessment with confidence!

The pineal gland is the gland that regulates sleep timing by producing melatonin, the hormone that signals to your body that it’s time to sleep. Light information detected by the eyes influences this process through the brain’s central clock in the hypothalamus; when it’s dark, melatonin levels rise to promote sleep, and they fall when it’s light. The hypothalamus helps set the timing, but the actual sleep-promoting signal comes from the pineal gland. The thalamus and cerebellum have other functions (sensory relaying and movement coordination) and don’t regulate circadian rhythms.