TUESDAY, Oct. 7, 2014 (HealthDay News) -- Every American over the age of 45 should be screened for both type 2 diabetes and prediabetes, a U.S. task force has recommended. "For people with abnormal blood sugar, changes in their lifestyle, such as eating healthier and exercising more often, can help prevent or delay the onset of type 2 diabetes. The best way to do that is to participate in a program that supports these behaviors. That's why we're recommending that people who are at increased risk be screened," Dr. Michael Pignone, a member of the U.S. Preventive Services Task Force,...