If you want to improve your health and reduce your risk of earlier death, you might measure your waistline. According to new guidance from the National Institute for Health and Care Excellence in the U.K., people should aim to cut their waistlines to less than half of their height. For example, for people 5 feet 10 inches tall, their waist measurement should be less than 35 inches. They believe that this measurement, which is simple for people to check, better reflects “central adiposity,” or the buildup of fat around their waist, which has been shown to be a significant risk factor for Type 2 diabetes, high blood pressure, heart disease, and stroke.