Most people’s hearts are on the left side of the chest. The vast majority of people’s hearts are located on the left side of the chest cavity, with only rare instances of right-sided hearts. The heart is not entirely on the left side. If you take the anterior midline of the body, about two-thirds of the heart’s tissue is on the left side of the chest cavity, and the other one-third is located on the right side of the chest cavity, with most people’s hearts being on the left side. The heart is the pumping organ for blood circulation in the body. Venous blood from the whole body returns to the right heart and then shoots into the pulmonary artery, where the blood enters the left heart after being oxygenated in the lungs, and the contraction of the left ventricle shoots the blood into the aorta and then delivers it to tissues and organs of the whole body. If you have chest tightness, panic and other discomforts, you need to go to the hospital in time, under the guidance of the doctor’s treatment.