Originally Posted by yellowoctopus
I believe this is an assumption without evidence. Look at the statistics on the average life expectancy and you will see that the communities with the high numbers (of years) are those that have embraced modern inventions.
You aren't arguing that humans are living longer because of heavily cushioned athletic shoes, are you?
You do realize that the craze of running and competing in heavily cushioned shoes has only been going on less than half a century. Nike shoes started becoming big only in the 1970s. I don't think there has been any great increase in lifespan in the West during that time.
There's definitely a risk of injury going barefoot or in minimalist shoes, but that's true for all exercise.