Child Obesity

Hopes were dashed this week that the United States was finally making progress in the fight against childhood obesity.

Contrary to previous reports, the epidemic of fat has not abated. In fact, there's been a big jump in obesity among the nation's youngest children, according to the latest analysis of federal data, published Monday in the journal Pediatrics.

In just over four decades, obesity levels in children and teenagers have risen dramatically worldwide, though that rise has been far from uniform. In a new study published online Tuesday, British researchers and the World Health Organization say those levels have plateaued lately in high-income countries, "albeit at high levels," while the rise in obesity rates has only accelerated in regions such as East Asia and Latin America.

A new study by Ohio State University shows preschool-aged children who go to bed late have a higher risk of obesity as teenagers. 

A new study by researchers in Australia shows some encouraging findings in the battle against childhood obesity.