>> different ways of getting to the same answer. >> next what's riskier, being obese be or living in the year 1910. a hundred years ago. >> 1910. >> you are correct. >> good. >> people lived 13 years less. an obese person five years. >> but they were happier back then. >> they were drinking. >> evidence for that. >> and eating brazil nuts and not smoking. >> they were eating a lot of brazil nuts. >> what's riskier being a manner or b watching two hours of tv a day. >> tv. >> being a man. >> i like being a man. >> the correct answer, a, being a man takes three and a half years off your life. watching tv, eight months off your life. >> i few it was risky. >> i got it right. >> you're going to outlive us. what's riskier, riding a motorcycle for four miles or skiing for a day.