There are several possibilities for heart weakness: 1, most commonly heart failure caused by various heart diseases, thus causing heart weakness, common coronary heart disease, myocarditis, rheumatic heart disease, hypertensive heart disease, etc., in the development of the disease to a certain extent, due to infection, exertion and other factors induced, causing acute heart failure, will appear heart weakness, clinical may appear dizziness, limbs 2, caused by physiological factors, such as prolonged work exertion; prolonged staying up late without rest; or heart weakness caused by cold or other physical diseases. The heart itself is not diseased, and after rest and conditioning and active treatment of other diseases, the weakness of the heart will be naturally relieved.