There’s new evidence that wearing a little device on your hip can help you lose up to ten pounds a year. At the very least, it can ward off weight gain, and help prevent heart disease and diabetes by inducing you to exercise. I’m talking about a pedometer, a gadget that counts your steps. New research from Stanford University, published in the journal of The American Medical Association shows that people who wore pedometers increased their physical activity by 27 per cent. That’s equivalent to an extra mile a day, enough to take off unwanted pounds if you don’t compensate by eating chips or cookies. People who wore the pedometers also tended to increase other types of exercise and they saw significant drops in their blood pressure.