The phenomenon of general weakness and hand trembling when hungry is considered to be the presence of hypoglycemia or hyperthyroidism. The human body does not have enough food to digest and absorb sugar in the stomach under the state of hunger, causing the blood sugar concentration in the blood to drop. In the case of low blood sugar, it will cause general weakness and hand trembling, which can be relieved by eating a piece of sugar or drinking sugar water. Hyperthyroidism is short for hyperthyroidism. Patients with hyperthyroidism feel hungry easily, have a large appetite, and lose weight gradually. They are not able to digest and absorb the food they consume well, so the body lacks the appropriate nutrients. Take medication for hyperthyroidism or go to the hospital for treatment. This phenomenon is caused by the above two reasons, so take the appropriate treatment according to the situation.