Why does a person have large cheeks and a double chin with a thin body?

One of the reasons is a small chin, such people often have big cheeks, even with thinness. In people with an overly powerful chin, on the contrary, for some reason, the face is almost devoid of fat. However, the reasons are not known to me. On the other hand, all this can be much more prosaic, for example, somewhere you still overlooked extra calories, or you naturally have such "cheeks". Everything needs to be studied on a case-by-case basis.

As far as I can judge from my experience, a person may look thin, but the percentage of body fat will be quite high.

One way or another, the volume of our body is made up of bones, muscles, fat. As a percentage, each person has everything individually. But with disproportionate development, if the muscles are not enough, a person may look thin, but at the same time with cheeks and chin.

True, it should be noted that under the influence of gravity, fat is more often deposited in the lower body, for example, on the thighs ... Chin exceptions may be genetically determined, or maybe you just don't notice the fat on the thighs in the same people who have large cheeks and chins.