The BBC reports on yet another explanation for the well known difference between male and female life spans. "Men's hearts lose up to a quarter of their pumping power from 18 years old to 70. But there was little change in women's hearts from 20 to 70, the study of 250 people said. The researchers said the difference may explain why women live on average up to five years longer than men." The tendency of women to take better care of basic health matters has also been suggested as a root cause, as have trends in smoking. For my part, I think that fewer statistics and more research into regenerative medicine - doing rather than watching - would be a good plan.