Sunken cheeks can result from various factors, including an individual's natural facial structure, the aging process, and significant weight loss. As we age, we tend to lose the supportive fat pads that lie beneath the skin and muscle, leading to noticeable changes in facial appearance. These changes may manifest as deepening diagonal lines that cross the cheeks, often referred to as 'nasojugal folds,' more pronounced nose-to-mouth lines, known as 'nasolabial folds,' and the development of heavier jowls. This loss of volume can contribute to a gaunt and tired appearance.