Melatonin’s Effects On Depression And The Brain

For those who are unaware, melatonin is a hormone produced deep in the brain (the pineal gland) and helps to regulate our sleep / wake cycle, among other things.  Sunlight hitting the back of the retina shuts down the production of melatonin, while the onset of nighttime will allow the body to release more melatonin.  So what does this have to do with depression?

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