Cardiac insufficiency level 1 is the mildest level, and how long cardiac insufficiency can live is related to the treatment and daily care. 1. Treatment: Once discovered, cardiac insufficiency needs to be actively treated, according to the patient’s specific condition, choose the appropriate anti-heart failure drugs for the patient to take, and if the daily control is good, it can improve the patient’s life expectancy. 2. Daily care: Cardiac insufficiency level 1 is a condition in which the patient’s daily activities are not restricted and symptoms do not appear, and general activities do not cause symptoms such as fatigue and dyspnea. Daily attention should be paid to stabilize the mood, reduce the adverse triggers that induce cardiac insufficiency symptoms, actively treat the primary disease, reduce or limit physical activities during the acute stage or unstable condition, and rest in bed, which is conducive to the recovery of cardiac function and improve the survival rate. Once the symptoms appear, it is recommended that the patient go to the cardiology department or the emergency department for consultation.