She’d overcome a big challenge in her mind,” he says. It’s not clear if a cold shower could have the same effect. “It may be ...

Ten studies looked at immersion in an ice bath or cold plunge, and one studied the effect of cold showers. Studies were only included if participants were immersed in water at or above chest level.

Complementing previous studies on cold baths, an international research team has investigated the effects of hot baths in training top athletes. According to doctoral student Abdellah Hassar, "Heat ...