So my dad is extremely thick headed. He doesn't want to train back or shoulder bc he doesn't want to get bulky because he's 5 9". I'm trying to tell him that he's not going to gain muscle, to look bulky, if he's eating below his maintenance calories (which he is). Can anyone link me with something they've read in the past that supports what I'm trying to tell him.
(all natural by the way. i know gear changes things)
Thank you
(all natural by the way. i know gear changes things)
Thank you