Question 16 • 2026-2027 EDGE Human Anatomy and Physiology A
The pineal gland produces melatonin, a hormone that helps regulate the body’s sleep-wake cycle. If the gland is not functioning correctly, melatonin regulation may be disrupted, causing a person’s sleep patterns to be off. Being unusually tall, craving chocolate, or startling easily are not typical signs of pineal gland dysfunction.
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