Hey ya'll , i've been traning for about 3 years. have put on some reall nice muscle mass , but have never look into traning seince. only work hard lift whights and spend a lot of money about supplments, and i have never changed up my traning routine. and i've read in AnabolicMinds newspaper that you've to change your traning routine every 3weeks . for more gains. that your body don't get used to the rountine. now. what changing routine is? change the exrecises? the whights ? the part of muscle ur working in 1 traning?
can any one help me on that, that would be great i will apriciate it though!