Do muscles grow into lumps if you don't relax after exercise?
Yes, but the effect is not very good. Exercise should not be carried out until you are very tired and don't rest. You should use up all your strength. Group exercises that require intermittent exercises during exercise. One group is about 10- 12 times, then rest for about half a minute, and then move on to the next group, so that there will be a rest time between muscles, so that your muscles can be fully relaxed. In a state of extreme burning and full relaxation, your muscles will grow better in pieces. I wish you success!