For the past couple of years, we have been told that walking 10,000 steps per day was enough to keep you fit and stop weight gain. Now, however, researchers from a team at the Canadian University of Alberta, have compared a 10,000-step exercise programme with a more traditional, moderate-intensity fitness regime and discovered that there were significant improvements in fitness levels in the second group. Get the full story at http://news.bbc.co.uk/1/hi/health/5371116.stm.