We all know water is important to our health? But how important? The answer is VERY. We are made up of 75% water, and if we don’t drink enough, we can’t function optimally and our health and looks suffer. Our organs can’t work properly. Our metabolisms slow down. Our skin suffers. Check out this chart that give you all the deets on optimal intake. Hint: it’s not eight glasses for everyone.

And don’t forget: water plumps up skin from the inside and give it that youthful luminosity, while chronic dehydration causes fine lines, dullness and sagging skin. A lot of us are walking around dehydrated without even knowing it! By the time we feel thirst, we’ve already been dehydrated for hours. Beauty and health can be yours with regular intake of nature’s most precious, life-sustaining beverage, so drink up!