The most readable comprehensive approach to aging treats aging as a disease onto itself. WHO has recently recognized this disease. Sadly, not the US FDA or NIH. In this approach there are 8 systems of aging. It is not clear, for instance, that everything in the body ages. Aging does appear to be reversible. For those interested in a complete story based on science David Sinclair from Harvard has written this...
https://www.amazon.com/Lifespan-audiobook/dp/B07QGH1Q43/
That said, strenuous exercise is one of the most potent factors in retarding aging. There is a ranking.
There are also numerous other Medium aging articles summarizing Sinclair (but read/audible his book). e.g.,
https://medium.com/wake-up-call/five-tips-to-live-a-longer-healthier-life-e8cb56ba7975
And even one of mine asking if we consider aging a disease (we should) should we also consider lying a disease (no),
All that said, this article is a welcome addition providing some of the newer hints we are gleaning from the science that unfortunately, in the USA and most of the world, isn't recognized.
