If the obesity epidemic is to be turned around, even babies and kids under age 5 should exercise every day, a new set of guidelines from British health officials have declared.  The guidelines recommend that kids who can walk engage in 3 hours of physical activity spread throughout each day, and that non-walking babies experience activities including "tummy time," swimming sessions with parents, and other active play.  From The Associated Press:

An estimated one-quarter of British adults are obese, the article said, as compared to around one-third of Americans.  American health officials including the Centers for Disease Control and Prevention recommend at least an hour of activity for children and teenagers, and 15 minutes of active time for every hour babies spend in child care.