In men, the heart is located on the right side of the left breast. The relationship between the heart and the breasts is not related to gender, but the size and degree of overhang of the breasts are different in each individual, and it is necessary to combine the position of the ribs to accurately determine the location of the heart and the relationship between the heart and the breasts. The human heart is located in the thoracic cavity, above the central tendon of the diaphragm, sandwiched between the two sides of the pleural sac, its location is equivalent to the range between the 2nd-6th ribs or 5-8th thoracic vertebrae, the entire heart about two-thirds of the left side of the body midline, that is, the male heart in the left side of the breast on the right side of the position of the heart, the exact location of the heart varies from person to person. The heart is one of the most important organs of the human body, is the entire body circulatory system of a variety of power, usually to ensure enough sleep, reasonable work and rest, eat a healthy diet, do not give the heart to increase the burden of circulation, in addition to appropriate exercise, effectively promote myocardial metabolism, enhance the myocardial contractility, to maintain the health of the heart.