Numerous studies have shown that gravity is not the only determinant of ageing, volume loss in the face is a combination of factors: tissue atrophy, loss of fat, bone resorption and the loss of collagen and elasticity in the skin. Often an ageing face is less about a softening jawline and more about losing volume higher up in the face in the temples, the eyebrow area, the anterior and lateral cheeks.
When we are young we have full cheeks and good mid-face volume, tight jowls and a neat little chin. Much like an inverted triangle with the vertex where your chin is. As we age this triangle reverses as there is less volume in the cheeks and mid-face and more volume in the jowl area. This mid-face volume loss gives one, for lack of a more descriptive comparison, a “hound-dog” look. Most people can see that they are looking older but do not recognise that volume loss is the reason that their face is beginning to "sink" and "sag".
Although surgical procedures have been used traditionally to tighten skin and muscle and reduce the appearance of sagging, surgery cannot restore lost volume and is particularly obvious in men who cannot easily hide the surgical scars as they have accompanying receding.