Sometimes aging changes or genetic traits may predispose you to a neck and jaw that is less pronounced, making it more susceptible to sagging or loss of elasticity as you get older. If you have a double chin, turkey neck or jaw structure that you find unappealing, sometimes  even diet and exercise cannot alter your chin line. Aesthetic neck and chin surgery may help to enhance the ergonomic appearance of your facial profile, as well as helping to strengthen your jaw.