Active smokers have a 30% to 40% higher risk of developing type 2 diabetes compared with nonsmokers , according to new data published in the Surgeon General's 50-year anniversary report on smoking. The Health Consequences of Smoking — 50 Years of Progress , announced at the White House last Friday by current acting Surgeon General Boris Lushniak, MD, MPH, highlights diabetes as one of several new diseases causally linked to smoking. Newer studies have controlled for those and other co founders and have also demonstrated a dose-response relationship, as well as a reduction in diabetes risk following smoking cessation. So now, the Surgeon General report concludes: "The evidence is sufficient to infer that cigarette smoking is a cause of diabetes." "The link between smoking and diabetes is reall...