By Karen ColeRecently published1 topic Hollow, sunken and sagging facial skin happens over time due to genetics, environment, diet, sun exposure, overall health, prescription drug usage and general aging. Collagen is the main structural protein that is found in the connective facial tissue. Collagen and elastin are both responsible for giving the face a plump and youthful look. As you age, you are exposed to a large variety of environmental factors. These outside influences, over time, have a direct effect on the decrease in collagen production.
Primary topic: Fitness and Exercise