Why do bodybuilders need towels just to wipe their sweat?

In order to wipe the sweat, this is a major function of the towel. But when going to the gym for training, towels can also be used to wipe away the "relics" left by unconscious trainers. Some gym training partners are not of high quality and will not "clear the field" after training. Since we can't change these people, let's start by changing ourselves. Bring your own towel to wipe the sweat stains left by others on the training equipment such as the backrest of the equipment. Of course, it is recommended to use the towel for wiping sweat separately from the towel for wiping equipment. This is not a waste, but for safety. Some coaches may have inflamed skin. In order to avoid infection, we'd better use them separately.