Some people swear by them. Others swear about them.
A November 2017 study by the Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, the Netherlands said, “Everyone exercising, whether they be weekend warriors or elite athletes, wants to get the most out of their workouts. Our research doesn't discount cold-water immersion altogether but does suggest that if the athlete aims to repair and/or build their muscle, perhaps they should reconsider using ice baths."