The pineal gland (also called the pineal body or epiphysis) ... tucked in a groove where the two rounded thalamic bodies join. Skip to main content. Your source for the latest research news.

The pineal gland produces several hormones. One of these, melatonin, helps regulate the body’s internal clock, including the sleep-wake cycle. The pineal gland may also help regulate female ...

René Descartes once described the pineal gland as “the principal seat of the soul.” Medical knowledge has vastly progressed since his time, though. Here’s what we know about this critical ...