Your muscle tissue WONT find any other bigger in the event that you continue raising the SAME level of body weight, Doing the SAME amount of reps and/or sets each time you work-out so that for example...Your chest muscles won't grow quite definitely if you keep bench pushing 300 lbs. for four sets to 8 reps each Monday but...If your ever find yourself utilising the same amount of weights, reps plus sets to 2-to-3 muscle building training consecutively then you have to take time off to allow your muscle tissue inside remainder very long plenty of to get bigger furthermore more powerful for you to use more excess weight, do most reps and/or sets assuming you are not buying more powerful every time you workout then chances are you're simply wasting your time because you won't be capable work out at plenty of intensity to create muscles.