Don't think, just do it! Recent research shows that when you take time to think about exercising, you are less likely to actually do it! Solution: don't think, just do it! When faced with the decision to exercise, adults should just do it as most people who ‘think about it’ often talk themselves out of it, suggests a new study. "Thinking about it can undermine your resolve," says Dr Sandra O’Brien Cousins at the University of Alberta in Canada.