Many of us, myself included, have vowed to adopt healthier habits in 2012. But what if instead of making a few resolutions to exercise regularly, get more sleep or eat nutritious meals, you decided to follow all suggested guidelines for improving your health - things ranging from owning a pet to applying a shot glass size of sunscreen every two hours?
Author A.J. Jacobs tried just such an experiment for an entire year. In this TEDMED 2011 video, he discusses the life-altering project and some surprising things he learned.
Previously: Helping make New Year's resolutions stick