Wow, this is not good. We practice crazily to achieve this goal. We should not rest, but continue. I only give myself 30-45 seconds to rest between groups, so that my muscles are constantly congested, swollen and tight. This feeling is really great. That's it, otherwise it wouldn't be weight training. If you are a novice, I suggest you take a break between the group 1. 30 to 2 minutes, otherwise the blood will subside, and it will be congested, wasting time.