The waist-to-height ratio is a simple measure of central adiposity, calculated by comparing waist circumference to height. This ratio is far more predictive of years of life lost than body mass index.19 Optimally, your waist circumference should be less than half your height. For example, an average man standing 5 foot 10 inches (70 inches) should strive to maintain a waist size of 35 inches or less. As central