When the breasts are developing, special attention should be paid to breast health care to prevent the breasts from being hit and squeezed; pay attention to the sleeping position, not prone, advocate supine; often do some breast pushing in line with the health requirements, can help you get rid of breast sagging. 1, chest expansion exercise to do stretching and chest expansion exercise, can exercise the chest muscles, but also to prevent breast sagging. 2.Hands open arms Head forward, body straight, then hands clenched fists, arms in front of the chest, feet open and shoulder balance, arms are spread left and right, muscle force at the same time. 3.Stroke the back with one hand as far as possible to the back, maintain about 10 seconds, and then alternate between left and right to repeat the action for 5-10 minutes. 4.Breast exercise effectively enhance the skin tightness, in the movement, to ensure that the pectoral muscles remain elastic, the body shape more exquisite. 5, chest palms together hands to the chest palms together, the power is concentrated in the palms, and then push pressure, do about 5 to 8 times a day. 6.Crossed arms left hand to grab the right arm, and then straighten outward with force to push, for a few seconds to relax, repeat the action for 5 to 6 minutes. 7, breathing action legs slightly bent and sitting close to the ground, and then press the inside of the leg knee with both hands to breathe in, exhale when the knee will be pulled outward for 5 to 10 seconds.