The gist of a long-awaited analysis of cancer-prevention studies issued in November: Be slim, very slim. The report by the World Cancer Research Fund and the American Institute for Cancer Research states in no uncertain terms that the more pounds you're packing, the greater your risk of developing a number of cancers, everywhere from the colon and the breast to the kidney and the pancreas. And it gave detailed advice on avoidance. Here's what you can do.

--Adam Voiland, Premium Health News Service