3 Questions
Which system is the pineal gland a part of?
Nervous system
What is the main hormone produced by the pineal gland?
Melatonin
When do melatonin levels rise?
During sleep
Test your knowledge about the pineal gland and its role in regulating sleep-wake cycles. Discover how melatonin levels fluctuate throughout the day and learn more about this small but important structure in the brain.
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