Tomorrow the world! Or something. Anyhow, I did 25 minutes (including 5-min. cooldown) with three 1-minute running intervals. I’ve been doing more than 3 intervals in that span, but today I tried something different: going faster. My walking rate was 3.8 mph for most of the time, and my first interval was 5.8 mph. The second and third intervals were 6.0 mph.
So now I’m even more tired.