I ON BEAUTY Chapter 26: Sleep Like a Baby for Better Skin
Insufficient sleep doesn’t just leave your mind foggy, it wreaks havoc on your skin. Why? During sleep your body undergoes the majority of its restorative functions. Collagen production is greatest while you sleep and is essential for maintaining firm, elastic skin. The release of somatotropin (aka human growth hormone, or HGH) also peaks during sleep, aiding in repair from external damage such as sun radiation, pollution, scrapes and bruising. Blood flow also increases, allowing more oxygen into cells and transporting more waste from them. Without these processes skin is left dull and vulnerable. Read more - https://www.huffingtonpost.com/entry/i-on-beauty-chapter-26-sleep-like-a-baby-for-better_us_59006be5e4b00acb75f18335