"Those who keep their weight stable throughout their lives are less likely to develop jowls — alternatively, weight gain and loss lead over time to decreased skin elasticity," says Wu. "Blythe Danner's jawline is sharp, and because Gwyneth may have inherited her long neck from her mother, she's likely to inherit the appearance of her mother's jawline as she ages," Wu adds.
To keep the jaw and the neck, which is often neglected, in prime condition, moisturize and apply sun protection daily. Also, maintaining good habits such as eating right and exercising regularly can help prevent drastic the weight fluctuations that can affect the integrity of the skin.
Halle Berry and Judith Ann Hawkins
"Halle Berry got her high cheekbones from her mother, who still has striking, full cheeks, and no sagging," says Wu, who predicts that Berry will stay youthful-looking for a long time as well. "Those with fuller cheeks look less gaunt and have less sagging as they get older," Wu adds.
While there's little you can do to fight the effects of gravity, some skin-tightening procedures are available — such as Thermage and EndyMed — so speak to your dermatologist if and when you think you have a problem that needs correcting. For those who don't want cosmetic procedures, the best option is to stick to an exercise regimen, which will help your skin (and not just the skin on your face) stay as taut as possible.