I started doing serious push-ups in July (60 a day). It's been almost 4 months and I got good results. My chest, biceps, triceps have become bigger, much more defined.
However, my left side chest, bicep and tricep are noticeably bigger than the right side ones. I am right-handed and always favor the right side when working.
I don't understand how this happened. As far as I know I don' have any disease. The last time I was seriously sick it was the flu (last winter). Other than catching a cold from time to time, I have never been seriously sick.
Pleas help me understand!!
P.s.: I am forty.