A BUNDLE of nerve-fibres running upwards from the tip of the pineal gland in some mammals was described by Kolmer and Loewy in 1922 1, and was termed by them the "nervus conarii". However ...

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 ...

Having co-evolved with the pineal gland, which regulates circadian and seasonal rhythmicity, the habenula has a role in the control of sleep and sleep-like behaviour. It may help to minimize ...