The main factors affecting appearance are heredity and aging. Of course, when it comes to genetics, different people have different experiences. Everyone's characteristics are different, and in some cases, these characteristics can cause personal troubles. Facial features are not the only thing affected by genetics. Although most people may think that body shape can be controlled to a large extent through diet and exercise, the truth is that some people accumulate more fat in some areas than others. This means that even with a healthy diet and extensive, targeted exercise, most people find it difficult to eliminate excess fat in specific areas; common ones include the abdomen, thighs, under the chin, and man boobs. Naturally, aging affects everyone, and time affects almost every part of the body.