Malcolm Gladwell calls this the tipping point. It’s that small change that tips you over from making excuses to taking action. One great example of the power of a tipping point comes from a study of tetanus education at a university. The study tested whether trying to induce higher levels of fear about tetanus would encourage more students to get vaccinated against it. The fear level of the education program didn’t seem to make any difference, but one surprising change did: adding a map of the university campus showing the health center and the times vaccinations were available increased the vaccination rate from 3% to 28%.