overweight

Expanded growth charts now include a body mass index of 60 — up from previous charts that stopped at 37. Officials also expanded measures to map severe obesity, which affects an estimated 4.5 million children and teens in the U.S.

The body mass index — a simple mathematical equation — is tied to a measure of obesity invented almost 200 years ago. On the downside, it can stand between patients and treatment for weight issues. It particularly mismeasures Black women and Asians.

Many parents have seen their kids' weight go up after months of disrupted schedules and excess screen time. Here's how to respond, without causing new problems, like body image issues.

Reporter Michael Moss says processed foods can be as alluring in some ways as cocaine or cigarettes. His new book explains how companies keep us snacking by appealing to nostalgia and brain chemistry.

We're told that it's important to keep body mass index below 25. But a study finds that for the lowest risk of death, the magic number has inched up to 27 — in the "overweight" category.

Critics say the ads from Blue Cross and Blue Shield of Minnesota could have a negative effect on overweight people. But the company says the problem is so big, it needed to take dramatic action.