Yup, at that point I was doing 2 - 2.5 hrs walking a day, though some of it was adding extra steps during my usual day, eg walking a half-mile lap around the s

Yup, at that point I was doing 2 - 2.5 hrs walking a day, though some of it was adding extra steps during my usual day, eg walking a half-mile lap around the shopping mall before going to the cafe. I was able to do it because I'm freelance / flexible hours, and I was determined to complete my experiment.