T is not uncommon for a woman to be smaller than the other breast: can happen not to breast inconsistency in half of all women, possibly due to different amounts of the female hormones, estrogen and progesterone, which affect the size and growth of the breast. You can smallest increase with resistance training and other exercises to build layers of the muscles of the chest wall pectorals major and minor, that support the fatty breast tissue. Result: lifting muscles by the smaller side. Step 1 Is chest presses with one that is very light dumbbells lying on a flat bench. The use of a 2-5 pound weight on your back on the bench and put his feet on the bench, knees bent. Drawing lower abs to your spine to protect the lower back during the exercise.