I'm glad to see a thread like this. Reading Ray Peat makes me wary of cardio, but for my panic disorder treatment, I need to do 30 minutes daily, both to acclimate to the sensations and to improve my fitness.
I'm exploring concentric-based exercises. I'm still unclear on what counts, but from Georgi's podcast, it seems cycling is preferable to running since it's concentric.
Any additional insights on this?