PATHOLOGY

Detailed explanation-1: -The main function of the pineal gland is to receive and convey information about the current light-dark cycle from the environment via the production and secretion of melatonin cyclically at night (dark period) (6, 7).

Detailed explanation-2: -It’s a part of your endocrine system and secretes the hormone melatonin. Your pineal gland’s main job is to help control the circadian cycle of sleep and wakefulness by secreting melatonin.

Detailed explanation-3: -In animals, nighttime REM sleep disturbances were induced by lesioning the pineal gland, which reduced pineal melatonin secretion [22]. However, the association between the pineal gland and RBD has never been investigated in humans.

Detailed explanation-4: -What is the pineal gland? The pineal gland is a very small gland in the centre of the brain shaped like a pine cone, which is where it gets its name. It is part of the endocrine system. It produces a hormone called melatonin.

Detailed explanation-5: -When it gets dark out, your pineal gland releases melatonin into your body. This may make you start to feel sleepy. This is because melatonin plays a role in regulating your sleep patterns (circadian rhythms). At night, the influx of melatonin can help you feel tired, which helps you fall asleep.