Rio's Body Building Problem
I am a young man, 19 years old I have got a problem in my chest. My left chest muscle is noticeably bigger than the right one and it began many years ago, since the age of 8.
At that age there were no clear muscles but it is becoming quite noticeable now. I am asking for your help and your sound advice based on scientific studies. What should I do?
Would participating in sports like running, swimming, etc. be good or bad for this problem?