Retrained to eat

This week, research published on bmj.com shows that overweight and obese teenagers can be taught to eat more sensibly by using a device called a mandometer. Professor Julian Shield, who led the study, talks about the results. Also this week, the response to one of the articles in the latest Christmas BMJ was enormous. Duncan Jarvies talks to Nathan Grills, the author of the article, about the storm in a sleigh.