Dolphin therapy programs claim that swimming with the sea mammals can cure conditions from chronic fatigue syndrome to autism. However, aside from a few small studies suggesting that dolphin fun may help with depression and, oddly, eczema, there's no evidence for these claims. Also, as much as dolphins may like playing around with other creatures, they "don't feel any spiritual imperative to heal humans, as far as anyone knows." This probably comes as bad news to that tattoo you got sophomore year.