Ever notice how your complexion looks tired after a few rough nights? It isn’t...

https://www.tumblr.com/forsakendragonmaze/819285522057936896/does-collagen-production-increase-during-sleep

Ever notice how your complexion looks tired after a few rough nights? It isn’t just in your head. When we miss out on deep sleep, our cortisol levels spike and our skin’s natural barrier function takes a backseat to recovery