5You always do the same number of sets and reps
Source:muskimagazin.rs
Our body has incredible adaptability. Because of this, we must try to keep our body constantly surprised, and we can do this by changing the number of sets and repetitions. If you always work at the same pace and do the same number of repetition, your body will get used to it, and so your exercises will have no effect on the musculature.