zone 2 is boring but i get why people lose weight with it

45 min, HR at 125 bpm, 3x per week. not sweaty, not tired, kind of like a fast walk with my dog on trails. 3 months in my resting HR dropped 8 bpm and my 'cardio wind' came back without the beat up feeling that HIIT gives me at 52. the dumb easy pace is the point.