It's a less-than-stellar fact of life that losing weight becomes more difficult as you age -- everywhere except for your hands, apparently. According to Wu, the loss of fat in your hands happens naturally with age, making your tendons, bones and veins really stand out.

"Don't get too skinny," says Wu. (We'll take this as our cue to go order a pizza.) She explains: "This happens to all of us as we get older, but it's more obvious in those with less body fat."

If you want to camouflage ropey veins, your best bet is to turn to the needle. Jaliman says you can get injections by a vascular surgeon, which collapses the veins (not as scary as it sounds) and makes them less pronounced.

Wu says to look into fillers and fat injections. When done well, these plump your hands and make them look more youthful (same as with your face). But, know the risks: these treatments can also cause bruising, swelling and lumpiness.

If you do go the fillers route, Jaliman recommends one with hyaluronic acid, such as Juvederm or Perlane, or Radiesse, which is made of calcium.