The pineal gland is a fascinating and mysterious structure within the brain. In humans, its main function is to produce melatonin, which is a powerful antioxidant that is thought to be protective against cancer as well as having anti-aging properties. It is literally a vestigial or “Third Eye” in humans, containing cells similar to those found in our retinas. In Hindu tradition, the Third Eye is the mind’s nonphysical eye of intuition.
In all species thus far examined, pineal glands have been found to be deep brain photoreceptors that play a role in the circadian and circannual regulation of periodic functions including sleep- and migratory cycles. Despite not being directly exposed to light, pineal glands respond to light, which opens up more questions that it answers.
As the brain ages, the pineal gland becomes hardened with calcium, phosphorus and fluroide deposits. By old age, it contains as much fluoride deposition as teeth. Cancer patients and people diagnosed with autism have greatly reduced levels of melatonin.