Multiple choice

What is melatonin?

  1. A moon orbiting Saturn

  2. 12 hours of sleep

  3. A hormone in your body that plays a role in sleep

  4. A Canadian rapper

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Melatonin is a hormone produced by the pineal gland that helps regulate the sleep-wake cycle, typically increasing in the evening to promote sleep.