swearing is GOOD for you

Researchers at a university bin Staffordshire have done a study using 66 volunteers to measure pain response and tolerance. Apparently using swear words during the exercise significantly increased the person's ability to cope with pain, despite the fact that the heart rate and other indicator's were the same as when not swearing. But didn't we already know this? When we hit something, catch ourselves on something or anything similar we swear, and always have done.... so we already knew this and didn't need ant amount of money to be spent to tell us this!