Facts About Sunlight

• Melatonin is produced, in the absence of sunlight, by pineal gland. Stress, refined sugars, and other factors that increase epinephrine output will also increase melatonin production. This is the cause of stress induced obesity. Melatonin does inhibit the pituitary secretion of melanocyte-stimulating hormone (MSH), which leads to increased hunger. That's why hunger is hard to control during the night and that's why the Ramadan fasting is maintained until sunset.
• Exposing human skin to sunlight for a couple of hours lowers the level of cholesterol in the skin by at least a half.