Swish some minty mouthwash before your next run! That’s according to the Scandinavian Journal Of Medicine. They found that runners who gargled with minty mouthwash before exercising were able to go faster than those who drank an icy cold sports drink. The researchers think it works because the minty menthol makes you feel cool all over, psychologically. And that reduces feelings of dryness and thirst that can slow runners down. So maybe swig from a mini-bottle of mouthwash before your next 5K.