Sorry, and don't worry,
the spaghetti monster in the sky righteous God sent me on a treadmill, a feared torture device, and ordered me to run 4 miles at 6 mph as a punishment. Walking wasn't allowed.
(these figures include 3-minute cool down - so I ran 7.2 kms (4.5 miles ) in 44 min. (6.1 mph.)
I'm 36F and had spent extremely sedentary life until last September, and my record was 2.7 miles (4.3 kms) at 5.5 mph (8.8 km/h), so it was such a divine retribution
Keeping my peak heart rate for 20+ minutes is not fun.
In order to make me be in a rodent's shoes,
the worst war criminal God turned me into a gym rat, and is using me as his guinea pig for his state-of-the-art exercise therapy. I've been tortured on a treadmill every day by Doc the Almighty, whose slogan is "If you're going through hell, keep going."