The pineal gland, or pineal body, is a small, flattened cone-shaped organ located in the lower-middle part of the brain. It is much more active in amphibians and lower mammals; in humans, it ...

Dr. Kim: So neuroatomically the pineal gland is probably not that important. And I think if somebody did an experiment where the pineal gland was just removed I doubt the patients would notice ...

"Pineal Gland Evolved To Improve Vision, According To New Theory." ScienceDaily. ScienceDaily, 19 August 2004. <www.sciencedaily.com / releases / 2004 / 08 / 040817082213.htm>.

Though the pineal gland wasn’t understood until the 20th century, descriptions of its anatomical location are included in the writings of Galen (ca. 130-ca. 210 CE), a Greek doctor and philosopher.

Summary: Around one third of people with heart disease suffer from sleep problems. A team now shows that heart diseases affect the production of the sleep hormone melatonin in the pineal gland.

Descartes' (1596-1650) idea of vision, [1692]. The passage of nervous impulses from the eye to the pineal gland and so to the muscles. From Rene Descartes' Opera Philosophica (Tractatus de homine ...