Most of us have enjoyed a couple hours in a hot tub. Muscles are soothed, you become relaxed, and you’re able to enjoy the company of friends or relish time to yourself. But while hot tubs might be a recent invention, hyrdotherapy has been used for thousands of years. Even early humans understood that hot water is good for our bodies. While we might have upgraded natural hot springs to the swirling, bubbling, and massaging jets of hot tubs, there is a lot more to them than simple muscle relaxation. Want to know the full benefits of a hot tub? Download our guide to find out what you might gain from a hot tub.