- How To Get The Perfect Nights Sleep - thank to Primal Health Products
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The human body goes through a biological cycle every 24 hours. When darkness sets in, our bodies release the sleep hormone melatonin, which causes us to feel tired and sleepy. Artificial light can suppress melatonin production by up to 50%. It can also stimulate the production of cortisol, a stress hormone that acts to keep us awake and affect our sleep. This is why we want to make our room as dark as possible and avoid bright screens like phones and TVs an hour or two before bed.