Patients with early stage heart failure can survive for years to decades with strict medical treatment. In end-stage severe heart failure, patients have a lower survival rate and may even die suddenly. Heart failure, or heart failure, is the end stage of various heart diseases. Patients with early heart failure can be treated with reasonable internal medicine to slow down the decline of heart function and have a higher survival rate, which generally does not affect life expectancy. If the heart failure is end-stage or the primary disease is difficult to control, chronic heart failure may have an acute attack, with a lower survival rate, and may even lead to sudden death. For patients with heart failure, strict treatment and good lifestyle habits are crucial. Heart failure should be treated as soon as it is detected. Adjustment of work and rest, diet and other habits should be made under the advice of the doctor, and the patient should actively cooperate with the clinical treatment and undergo regular follow-ups.