Can be cured, there are three ways 1, the best policy: let two dumbbells swing dozens of times a day, if not, put the dumbbells under your bra # @! 2, the middle policy: eat large pieces of meat, drink soup in a big bowl, only pick the fat, not the thin, it is best to go to the hospital to get some androgen to promote the synthesis of protein. 3, the next policy: that is, invite me to treat you personally, focusing on the upper body, this investment is less, quick results, the disadvantage is that the symptoms are not cured. I have another trick. There is no secret to winning, but there is a secret. You may understand after you are 30 years old.