Taking just 2,000 extra steps a day could help people prone to heart attacks and stroke cut their risk by eight per cent, claim researchers. The exercise is equivalent to walking 20 minutes a day at a moderate pace, says a study in The Lancet medical journal. The health benefits are gained by anyone doing 2,000 extra steps for a year on top of their normal levels of activity. But doing 4,000 extra steps - 40 minutes of additional daily walking - matches the benefits from taking a statin, says study leader Dr Thomas Yates, of the Diabetes Research Unit at Leicester University. He said Doing 4,000 extra steps a day reduces your cardiovascular risk by about 16-20 per cent, which is the equivalent of taking a statin. However, a statin has side effects and only reduces cholesterol, whereas walking has a much bigger range of health benefits. The study looked at 9,306 adults from 40 countries who had impaired glucose tolerance (IGT), which can lead to diabetes, or other heart disease risk factors. Using a pedometer, researchers recorded usual walking activity in terms of average number of steps taken per day over a week, both at the start of the study and again 12 months later. The researchers analysed the relationship between the number of steps taken per day and the risk of subsequent cardiovascular disease after taking account of a wide range of factors such as body-mass index, smoking status, diet, clinical history, and medication use. Altogether 531 cardiovascular events such as heart attacks were recorded. The study showed those people with greater levels of activity at the start of the study had lower levels of risk, and that doing more walking during the year-long study cut the risk still further. It found that every additional 2000 steps taken a day over one year-roughly equivalent to 20 min a day of moderately-paced walking-reduces the risk of cardiovascular events such as heart attack and stroke by eight per cent.