People who exercise infrequently are at a greater risk of suffering a heart attack than those with a regular exercise programme, a new study has found.
Barry Franklin, a researcher with the William Beaumont Hospital in Michigan, USA, studied the members of a large chain of gyms and health centres for a year. It was found that one fatal heart attack occurred for every 2.5 million workouts.
However, it emerged that the vast majority of these heart attacks happened to older men who exercised less than once a week.
Mr Franklin's research appears in the current edition of 'The Lancet.'