There are several manifestations of fast metabolism: first, the skin is renewed quickly, and the dead skin increases too much, especially when bathing, a lot of dead skin will be rubbed down. Second, the digestive system, gastrointestinal peristalsis increases faster, and people are more likely to feel hungry. Third, the pulse rate increases, the heart rate increases, and the heartbeat also increases, these are also typical manifestations of metabolism. Fourth, the temper is easily irritable, do not like quiet, the mood is very easy to be swayed by all kinds of things, and show particularly impatient. Fifth, eyeballs protruding, do not sleep, can be manifested as a significant reduction in sleep, dreamy or sleep about four hours a day. Fast metabolism is very often pathological, should be more clinical observation, if necessary, in the hospital for examination, some diseases will make the metabolism faster, such as hyperthyroidism and so on.