To increase the mass of your pec you must do pushup which uses body-weight to increase the size of your pecs. Bench presses can also be very if even more helpful. Any muscle gain requires certain amounts of proteins to be consumed daily.
work out do anything which puts strain on your pec musclesthe way to beef up muscles fast is to overload them, kee going long after you feel like you cant stop bcause when your muscles repair...
No. They are all similar in size. However, larger animals do have more cells. For example, there is a big brick house and a small brick house. The bricks are all the same size but, the big brick...