The association between body mass index (BMI) and mortality from both cardiovascular disease (CVD) and coronary heart disease (CHD) is well accepted. Individuals with high BMIs are also at increased risk of developing other conditions such as sleep apnoea, osteoarthritis, female infertility, varicose veins, gastro-oesophageal reflux and stress incontinence. BMI has been the gold standard for predicting health by measuring body weight in relation to height. However, although BMI may be helpful in estimating overall obesity, it is becoming increasingly apparent that waist-hip ratio, which estimates central obesity, is a more accurate predictor of the risk of health problems generally and CVD in particular.