Losing weight can seem like an unwinnable war. You know you need to eat less and exercise more, but that's nearly impossible when everything in your life — from job stress to family crises to the temptation of fast and fatty foods — encourages you to do the opposite…

Last year, 30% of children in 30 states tipped the scales as either overweight or obese. "With hundreds of millions of obese people that we've got in our country now, physicians can't treat them all," says Dr. Michael Jensen, professor of medicine at the Mayo Clinic in Rochester. "We just don't have enough physicians."

TIME, by Alice Park 3/23/2010

Tags: Dr. Michael Jensen, fat, Weight, Wellness