According to a new study, if you rest longer between heavy weight sets, you could see more muscle growth! This is an easy way to increase your lean muscle gains and get more out of your gym session. Next time you go in for a strength training day, try resting two to three minutes between sets.

Original article and pictures take http://www.fitnessmagazine.com/workout/lose-weight/build-strength/why-you-should-rest-longer-between-strength-training-sets/ site