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She then joined a pineal cyst support group, mainly consisting of young women, who believe such cysts are to blame for debilitating symptoms.

It had a prominent pineal foramen -- a hole in the top of its head that many lizard species use to sense sunlight and judge the length of daylight hours.

Melatonin is produced naturally in the pineal gland to signal the body that it is time to sleep and regulate its circadian rhythm -- the physiological cycle over a 24-hour period.

These supplements, including sugary gummies, typically offer much higher doses than what the pineal gland produces to help shift circadian rhythm to night mode.

Melatonin is a naturally occurring hormone produced by the pineal gland, a small structure at the center of the brain.