The chest muscles, which are large clusters, will disappear.

1. Flat bench press can exercise the central part of the chest muscles.

2. Incline bench press exercises the pectoralis major, upper part, and around the clavicle.

3. Decline bench press, pectoralis major, lower part, which is the part mentioned by the original poster. There is another very tiring exercise, that is, parallel bars, wide distance, cross-legged, bend 45 degrees, do push-ups, exercise the lower side of the chest muscles, the effect is remarkable.

4. The flat dumbbell fly can exercise the outer side of the pectoralis major, so that the pectoralis major and shoulders are connected without separation.

5. Standing, lean forward, hold a dumbbell with one arm, and "squeeze" your arms inwards to exercise the "middle seam" between the pectoralis major muscles.

These movements are enough. In March, the pectoralis major muscles can be exercised and "female-like". They can be clearly seen and bulged when wearing thin clothes.