The pineal gland is part of the endocrine system. Like the rest of the endocrine system, it's responsible for producing and regulating the hormones, most notably melatonin, vital to the body's function. As brain mapping technology and scientific research expand, the function of the pineal gland is becoming better understood. We now know it is essential to the overall health of the body, as it regulates the sleep cycle, without which essential healing and repair of the body cannot take place.
The pineal gland is a small, pinecone-shaped gland located deep in the brain where the two halves of the cerebrum meet. It is about the size of a grain of rice. The pineal gland is one of several specialized structures in the brain known as circumventricular organs or those outside the blood-brain barrier.
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