My best running times were in 2017 when I did a 7 minute workout for 90 days in a row. I was doing the routine twice by the end of the 90 days. The 7 minute wo

My best running times were in 2017 when I did a 7 minute workout for 90 days in a row. I was doing the routine twice by the end of the 90 days. The 7 minute workout was a fad in 2012? that promised the same results as this study. Minimal time effort, maximum results.