I tried this last spring, trying to stay in zones 2/3 and really enjoyed it. Somehow I've lost my way with it a bit. Today my heartrate shot up with 5 minutes (maybe the wine 🍷 last night). Has anyone got any kind of "plan"?. Before, I just ran for 30 minutes in zones 2/3, then 35 mins, 40 mins etc etc, but there must be a better way.
Any suggestions very gratefully received xx