Shaking hands when you are hungry may not be caused by disease, but may be caused by low blood sugar reaction, insufficient blood supply to the cerebrovascular system, atherosclerosis, and estrogen/progesterone imbalance. 1. Hypoglycemic reaction: easy to cause palpitations (rapid heartbeat, often accompanied by panic), hand tremors, hand shaking and dizziness, as well as insufficient cerebral blood supply, head and limb weakness and pain symptoms, often accompanied by cold sweat and other symptoms. 2. Insufficient blood supply to the cerebral blood vessels: especially insufficient blood supply to the large arteries, and insufficient blood supply to the vertebral basilar artery is common, which can easily induce hand tremor, accompanied by symptoms of dizziness. 3. Atherosclerosis: it may be related to insufficient blood supply to the coronary arteries of the heart, and once coronary atherosclerotic heart disease occurs, it will cause symptoms such as hand tremor. 4. Estrogen-progestin imbalance: menopausal women may cause an imbalance of estrogen-progestin in the body, which in turn causes symptoms of hand tremor. It is recommended that patients need to be examined in a regular hospital and treated according to the cause.