1. Melatonin is made by the pineal gland.
True
False

2. The pineal gland is located in the lower abdomen.
True
False

3. Melatonin regulates the body's internal clock.
True
False

4. Melatonin is produced at high levels during a person's normal sleeping hours and is low during the day.
True
False

5. Many factors, including light and many common medications, can affect melatonin secretion.
True
False

6. The U.S. Food & Drug Administration (FDA) considers melatonin-containing products dietary supplements
True
False

7. Dietary supplements can be sold without FDA pre-market review or approval.
True
False

8. Many people take melatonin to help sleep.
True
False

9. The benefits and risks of melatonin are widely documented.
True
False

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