> Specific to cardiovascular disease, repeat marathon runners [3] have higher calcium buildup than those who do not run in marathons
The linked study did not say anything about runners versus non-runners, so I would be careful in making such statement.
From the study: "We studied 100 male presumably healthy runners, aged 50-75 yr, who completed at least five marathons during the preceding 3 yr."
The study involved older marathon runners and found artery calcium plaque in some of them. It however did not include a comparable group of non-runners. It is entirely likely that the calcium plaque buildup happens in higher age regardless of lifestyle.
Or perhaps frequent marathon runners have less of it than non-runners. Or more of it. The point is that this study does not say what you claim it says.
The linked study did not say anything about runners versus non-runners, so I would be careful in making such statement.
From the study: "We studied 100 male presumably healthy runners, aged 50-75 yr, who completed at least five marathons during the preceding 3 yr."
The study involved older marathon runners and found artery calcium plaque in some of them. It however did not include a comparable group of non-runners. It is entirely likely that the calcium plaque buildup happens in higher age regardless of lifestyle.
Or perhaps frequent marathon runners have less of it than non-runners. Or more of it. The point is that this study does not say what you claim it says.