"Kids just aren't getting all the exercise they need in schools, so parents need to enforce it as well," said ABC News Senior Health and Medical Editor Dr. Richard Besser.
In fact, children who regularly eat dinner as a family, get around 10 hours of sleep and limit the amount of time they spend watching TV are 40 percent less likely to be obese, according to a study published this month in Pediatrics.
Drawing on her own experiences, the first lady said she has implemented minor changes in her daughters' lives, including limiting television time, replacing sugary drinks in their lunch box with water and milk, and engaging them in more physical activities.
"Small changes can lead to big results," she said during an obesity campaign at the YMCA in Alexandria, Va., last week. "We just have to make the commitment to do it."
While the secretaries offered the new campaign as an answer to help end childhood obesity, questions by the kids kept the pressure on.
"How can children help other children who are obese?"
"What can teachers in our schools do to model better nutritional habits?"
"What's the most important thing you're doing to address this crisis?" Besser asked the cabinet.
"The most important thing is getting the attention of the American people, such as parents and teachers and aunts and uncles and kids, about the fact that we have a health crisis that is really affecting our children," Sebelius said.