Many people don't realise that carrying that extra weight around your waist increases your risk to diabetes.
Measuring your waist is simple - put a tape-measure around your body over your stomach at its widest point - that will be your waist circumference.
It can give an immediate indication of your risks to diabetes and other cardiovascular and metabolic diseases.
The risks are not exactly indicated by the size but a circumference of more than 88 cm (35 inches) in women and 102 cm (40 inches) in men can increase the risks of diabetes 5 times.