Melantonin

The pineal gland (also called the pineal body, epiphysis cerebri, epiphysis or the 'third eye') is a small endocrine gland in the vertebrate brain.
It produces Melatonin , a hormone that affects the modulation of wake/sleep patterns and photoperiodic (seasonal) functions.

This gland is activated by Light, and it controls the various biorhythms of the body.
It works in harmony with the hypothalamus gland, which directs the body's thirst, hunger, sexual desire and the biological clock, that determines our aging process.

The retinal clock, produces (stimulates the production of?) melatonin.
Researchers are now looking for the exact location (s) of this clock, in the human eye, (and expect to find it).
No one yet knows, what the separate clock is for, or how it relates to the SCN.

When puberty arrives, melatonin production is reduced.

The pineal gland secretes melatonin, during times of relaxation and visualization.
As we are created by electromagnetic energy - and react to EM energy stimuli around us - so does the pineal gland.

Melatonin possesses the same basic indole molecular structure as the LSD molecule.
It is not at all difficult to imagine how this substance could be metamorphosed into a psychedelic material.
But so far, injections of melatonin have produced no altered mental states in humans.

Melatonin is made in the brain by the pineal gland.
During darkness, melatonin levels are greatest.
During brightness, these levels are low.
For this reason, melatonin is believed to affect the body's circadian rhythms of waking and sleeping. People usually take synthetic melatonin supplements for sleep disorders or to reduce jet lag.