what effect does the pineal gland have on the body
Pineal Tumor Treatment. Overview. The pineal gland is a small gland in the mid-brain shaped like a pine cone. It produces melatonin, a serotonin derivative and hormone that controls sleep/waking patterns, circadian rhythms and the body s ability to regulate to the seasons.ineal Tumor Treatment. Overview. The pineal gland is a small gland in the mid-brain shaped like a pine cone. It produces melatonin, a serotonin derivative and hormone that controls sleep/waking patterns, circadian rhythms and the body s ability to regulate to the seasons.