Researchers at Loughborough University in the UK wanted to research the effects of burning calories by raising your core body temperature. And it's good news!
They found that taking a hot bath (around 104 F) burned about the same amount of calories as going on a half hour walk! (Looking at around 140 calaories)
It gets better if that's possible: researchers also found that passive heat in the body helped that anti-inflammatory response that usually comes post exercise which helps fight off illness and infection!
So taking a long hot bath is good for you! If you're headed somewhere for Spring Break next week might as well get in the tub now and get burnin'.