As many of my friends approach middle age, I noticed quite a few of them have taken up walking as a hobby. Occasionally they’ll even send some media on the health benefits of walking. I assume that there are some psychological benefits, and perhaps even a psychosomatic aspect, but is there any real evidence of better health through more walking?
I think for the purposes of this discussion, we can exclude folks that are unable to walk due to medical reasons as well as speed walkers who do it competitively or to an extreme. But for people between, say, the 20th to 80th percentiles, is there a real difference?