Skimp on shut-eye and your skin will look dull. When you’re tired, blood doesn’t flow as efficiently. As you snooze, your body churns out human growth hormone — a crucial ingredient for collagen production. All this below-the-surface metabolic activity, however, helps cause skin to lose about 25 percent more water overnight than it does during the day. Prevent moisture loss by applying a nourishing cream before going to bed, to lock in moisture.
