Actually, I thought I had. But my point here is to put it in context. It will work just fine if you're a member of the niche group I specified. Those in rehab would be another perfectly good example of some individuals that could benefit from walking. These are the people that can take it as a serious viable path to improved health.

For everyone else walking just won't do it. That is, unless you're talking about walking up 100 stories every day? Otherwise, it isn't enough to illicit any significant beneficial change. Does it burn calories? Yes. Than again, so does sleeping.