Breasts contain no muscles but only fat cells, milk-ducts and glands held together in a web of soft connective tissue so by exercising you cannot increase bust size. Neither wills exercising directly reduces a heavy bust. This is especially true if your breasts are heavy if however you are over weight. A weight reducing diet combined with regular exercises will help you to reduce your weight as well as you bust size. Exercising however has several other advantages as well; it tones up the muscles on which the breast tissue lies. So if your bust-line measures less than what you would like then exercises would give you backup chest line firmer and a more prominent thus making your bust appear larger.
Pec Press: Using three-to five-pound weights, lie on your back, with knees bent. With your arms outstretched to each side, slowly bring your arms together, hold for one second and then slowly lower your arms again. Work your way up to three sets of 10 - 12 reps every other day.
Butterfly Press: Using two three to five-pound weights, sit on the edge of a chair with your back straight and arms at your sides. Slowly raise your arms to the side to shoulder level. Hold this position for a count of four, and then slowly return to starting position. Work your way up to three sets of five to seven reps every other day.
Wall ups: These are done by standing about two feet from a wall, facing it. Place your hands at chest level flat against the wall. Now, lean slowly toward the wall using your arm and chest muscles to control your motion until you have your nose against the wall.
Push back to your original position. Repeat this motion 15 times. To increase the effects of this exercise, when you reach the point of lean that stresses the chest muscles most (you'll feel it), pause and hold for a count of 10 or 15, then finish the motion.
Pectoral Push-Ups: Lie face down on the floor and raise up, as if doing conventional push-ups, but keep your forearms and elbows on the floor. Hold for thirty seconds. Repeat five times. Inverted Push Ups: Stand with your legs two to three feet from a wall and your palms on the wall. Slowly lower your chest to the wall by bending your elbows and then slowly push your body back to starting position. Repeat 10-12 times.
