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Pineal Gland

Meaning

The Pineal Gland is a small, pinecone-shaped neuroendocrine organ situated in the epithalamus, near the center of the brain, which serves as the primary regulator of the body’s circadian rhythm. Its main function is the production and secretion of the hormone melatonin, a derivative of serotonin. This gland acts as a critical interface between the nervous system’s light signals and the endocrine system’s hormonal output. Its integrity is essential for sleep quality, seasonal reproductive cycles, and the overall synchronization of peripheral clocks throughout the body.