The era of selfies has made everyone more self-conscious about having a double chin, whether real or imagined. A double chin can develop from weight gain or saggy skin following weight loss. It can also be a feature of genetics or structural anatomy. Stubborn fat or saggy skins can interrupt a pleasing contour beneath the chin, or create jowls or a turkey neck. Correcting a double chin can produce dramatic improvements, making you appear both younger and slimmer.