Maria SharapovaAs if we didn't have enough to worry about now we have to slather sunscreen on our hands everyday too?

Yes, it's true. Hands are one the first body parts to show signs of age. And when health fails you or you're on a diet, hands, especially nails, are the first place the body takes vital resources from for more important parts.

Don't want that to happen? Here's the 411 on young, healthy hands.

• Wear gloves. Whether its harsh weather or dishes, gloves protect.

• Balance your diet. A healthy diet that includes protein is the best thing for lustrous hair and nails.

• Use sunscreen. Although there are plenty of ways to rejuvenate hands via laser, peels, or lip, your best daily defense is sunscreen.