For a long time, athletes, coaches, and researchers alike all thought that the suffering that ensues during an ice bath was well-worth the benefits to their muscles. The idea was that the intense cold would alleviate the swelling associated with DOMS, thus soothing the muscles. But over the past few years, the science behind ice baths has become rather murky. Despite many athletes swearing by its benefits, there’s little physiological evidence to suggest it does all that much for your muscles. This week, another study backs that up: In the Journal of Physiology, researchers found that when a group of athletes used ice baths after exercising, it actually stalled muscle regeneration, a key component to building and maintaining muscle.