Beauty Sleep Is Real

Sleeping Beauty may have had the ultimate secret to looking great and maintaining the soft, dewy skin of youth. The best skin-care treatment may be a good night's sleep.

It's a universal truth: When you're in your 20s, you can stay out all night and look fresh the next morning. Unfortunately, as we age, lack of sleep affects us more deeply and shows more prominently on our faces -- lackluster complexions, dark circles, fine lines and, in more extreme cases, rashes and eczema.

Progressive loss of cellular water may be one reason sleepless nights affect our skin more visibly as we age, says board-certified dermatologist Dr. Howard Murad. Water retention is key to keeping skin moisturized and supple, which can translate to fewer lines and a smoother complexion. Read more