Treadmill?

Saw a few links about this:

https://old.reddit.com/r/running/comments/jmlqpb/combined_treadmill_and_outside/

https://old.reddit.com/r/Runwithrivs/comments/nane0z/mixing_the_treadmill_programs_with_outdoor/

I think maybe the way to think about this is that treadmill is my F1 simulator. It wont test out all the muscles — and it might even be testing different things.

I should consider adding in this run simulator — to train most of my muscles. And get the time in.

This is what the people I know who lost weight also did — ran on treadmills, regularly.