SIRT3 and familial dilated cardiomyopathy: Some western medications (melatonin, metformin) and active ingredients of traditional Chinese compounds (berberine, baicalin, salidroside, icariin, resveratrol) play a role in protecting DCM cardiomyocytes and improving cardiac function by activating the SIRT3‐related pathway and elevating the SIRT3 level.