As people age, the shape of their faces begins to change. As fat accumulates in the neck, the skin begins to sag and the jaw muscles begin to shrink. This can cause your jawline to sag. One study found that performing facial exercises and massaging the face and neck area regularly over the course of 20 weeks resulted in fuller, more youthful looking necks and cheeks. This article will help you massage your neck to prevent sagging effectively.