Lose It

Kids run a mile every gym class

Today's is a best-of Brian Lehrer Show, so we won't be taking any calls. But the comments page is always open, and you can connect with us on Twitter and Facebook too!

With New Year’s resolutions starting today, we look at a popular personal promise: to get fit and lose weight: Writer A.J. Jacobs on his efforts to follow all health advice out there; nutritionist Marion Nestle on everything you need to know about calories; and what’s behind the 20-minute workout. Plus: author Jim Holt examines existence; listeners give each other advice; lessons learned from television; and comedian Penn Jillette on atheism.