All of us have been told what is 'good for us' and what is 'bad for us.' We all know that celery is healthier than donuts, that walking is better than driving to nearby locations, that taking the stairs is better than using the elevator and so forth. Yet when it comes time to make the decision between an apple or a pastry, we often opt for the less healthy option. The reason might be that self-discipline is difficult and that human beings tend to find ways to justify their momentary indulgences, perhaps by promising to do a theoretical - but often unrealized - two-hour workout later. But what if we, as a society, could ease that decision-making process? What if we could develop a way to help everyone lean toward making the choice that is better for their health, even without them noticing?
If you visited New York City sometime during the past two years, you may have noticed that every restaurant or caf