How does feeling heart tired return a responsibility

Heart fatigue may be caused by heart muscle fatigue, increased heart load, insufficient oxygen supply, etc. 1. Heart muscle fatigue If the patient is in emotional excitement, tension and other phenomena for a long time, the heart muscle is affected, reducing the heart pumping function, resulting in heart fatigue. 2. Heart load increases If the patient exercises violently for a long time, causing the heart to meet the needs of the body, the heart load increases, if not relieved in time, causing the above phenomenon. 3. Insufficient oxygen supply to the heart If the patient has heart disease, leading to heart dysfunction, unable to provide enough oxygen, causing insufficient oxygen supply to the heart, resulting in heart fatigue.