New study shows certain video games can improve health in children with obesity -- ScienceDailywenty-two of the 23 families in the gaming group finished the six-month program. Children and parents in the gaming group completed 94 percent of the gaming sessions and attended 93 percent of the video-chat sessions. "When you don't intervene with kids who are overweight, often their health risk factors and health behaviors worsen over time," said Dr. Staiano. "So, unfortunately, we weren't surprised to see that kids in the control group increased blood pressure and cholesterol and decreased physical activity over the six-month period." Children in the gaming group: Reduced their body mass index by about 3 percent while the control group increased their BMI by 1 percent. Reduced their cholesterol by 7 percentiles while the control group increased cholesterol by 7 percentiles. In other words, the kids in the gaming group remained in the healthy range. The increase in the control group's cholesterol levels pushed them into the borderline category for high cholesterol.