Guess what. People who work out regularly aren't about to lift a light weight 100 times when they can still keep it at 10 repetitions by increasing the weight.

Guess what. People who work out regularly aren't about to lift a light weight 100 times when they can still keep it at 10 repetitions by increasing the weight. There are studies that say working out for longer than an hour or so decreases gains. So really, don't make your workout any longer just because you don't want to lift heavier weights.