As is always the way with threads like these, there are those who, stung by the “attack” on their favourite pastime respond in the manner of,
“ Well my 50+ miles a week is sure better than the guy / gal who just sits on the couch and eats junk food all day”
They always fail to realise, or at least mention that there is a spectrum of different levels between the two extremes. Somewhere on that spectrum is probably the optimum that is the best for health for most of us. It’s probably a range, but a range that can probably be described as “moderation”, just like your mother used to say…everything in moderation, and she was more than likely correct.
I’ve yet to see a centenarian interviewed about their long life and what they attribute it to, come back and say,
”Oh it was probably due to the interval session / double threshold work/ my 100 mile weeks/ my work towards beating my 10k PB.”
Never.
Some will say that they are a product of their time. When they were younger the running boom was not even a thing…it remains to be seen whether the future centenarians will be extolling the virtues of the running lifestyle, or the gym culture. Maybe they will, perhaps they won’t. At one point even doctors used to advertise cigarettes, until the evidence stacked up against them, but it took time.
Until then I personally, am inclined to play the cautious game and work with the evidence that I do have. Most centenarians and blue zoners have several recurrent themes.
1) Lots of easy activity with only a few periods of harder work. Walking a lot is a common theme, and activities like gardening and housework etc, that can be described as moderate in nature.
2) A lack of stress in their life. Hard exercise is stress. We as a species are designed to handle brief, infrequent moments of stress, that is what adrenaline is for. But it is infrequent…how often did we have to run for our lives in the past? Chronic stress isn’t good for us, even if it is stress that isn’t as intense as running from death situations. A marathon training plan is a daily dose of self inflicted stress on the body.
3) A good diet. Plus most blue zoners don’t eat that much. That is a recurring theme. They are not needing to fuel the body for an intense training program.
4) Good social connections. The cultivation of which kind of goes against the image of the lonely long distance runner.
5) A little of what you fancy. The idea of life in moderation seems to be a constant theme.
Unfortunately the jury is still out on what is the best approach. But the evidence is slowly stacking up…just as it was against cigarettes at one point. Until then we are all playing Russian roulette with our lives, as we never know if we are doing something wrong…until it is too late. For me therefore, I’d like to play that game with only one bullet loaded in the barrel ( moderation), not two or more…