roots of the tree. >> different ways of getting to the same answer. >> what's riskier being obese or living in the year 1910. one hundred years ago. >> i would say living 100 years ago. >> you're all correct. people lived 13 years less in 1910. an obese person five years less. >> they were a lot happier back then. >> they were drinking. >> no politically correctness. >> drinking and smoking. >> and eating a lot of brazil nuts. >> what's riskier being a man b watching two hours of tv every day? >> what? >> i'll say tv. >> being a man. >> i like being a man. >> correct answer a being a man takes three and a half years off your life. watching tv, eight months off your life. >> i know. it's risky. >> yeah, but i got it right. >> you'll outlive us also. what's riskier riding a motorcycle for 4 miles or, b skiing for a day?