New research suggests too much running can actually lead to early death. Researchers found that the people who live for the longest are those who do a moderate amount of exercise. This amounts to two to three hours of running a week, Health Day reports. However, the research also showed that people who do a lot of running, and those who do none, both have shorter lifespans. Dr Martin Matsumura, who led the study, said he does not tell people not to go running on the basis of the research. However, he does advise that people who do a lot of running should keep abreast of research into links between lifespan and excessive running.
The researchers are unsure why this is but say it does not seem to be related to heart health. The researchers, from the Cardiovascular Research Institute at the Lehigh Valley Health Network, in Pennsylvania, studied more than 3,800 runners. The participants were both men and women and had an average age of 46. Nearly 70 per cent of the participants said they ran more than 20 miles a week. The researchers took into account what medication the people were taking and also whether they had high blood pressure, high cholesterol or a history of smoking. They found that none of these factors could be used to explain why the people who ran the furthest had shorter lifespans.
via Daily Mail