Could we do the same thing for health insurance -- take class in cooking, nutrition, stress management, communication, parenting, stopping smoking, maybe even exercise classes -- and get a reduction on our monthly premiums?

WHITEHOUSE: Your Interview with the President

Led by a video projected on to a whiteboard nine children, a mix of Latinos and African-Americans, walk or jump on the spot, swing their arms, stretch and reach in an exercise class that lasts around 15 minutes.

BBC: Obesity rates fall in Philadelphia