Get Morning Sunlight and You'll Sleep Better by Brandon Peters, MD, medically reviewed by Sanja Jelic, MD

Getting morning sunlight can help you sleep better at night. That might not seem to make any sense. However, there's evidence that it's true, especially if you have a circadian rhythm disorder. That's because of numerous factors, including:

• Body temperature, because sunlight can warm you up
• Morning production of the stress hormone cortisol
• Increases in the level of the hormone serotonin, which is important to sleep

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