Do you have any skinny people around you who can’t get fat after eating? In other words, a drink of water will make you fat! Do you occasionally ask with great concern, [Do you have hyperthyroidism? How to eat is not fat! ] Or [Are you hypothyroidism, so listless, and still fat? ] In fact, besides weight is related to thyroid health, there are many other manifestations, which are also barometers of thyroid health. A simple picture tells you that thyroid gland is used for what. Apart from affecting body weight, what other manifestations will thyroid gland problems have.