Same here in my late 30s. I was a machine. By my late 40s/early 50s it actually started to feel unhealthy, way too cardio intensive, and I switched to a more ba

Same here in my late 30s. I was a machine. By my late 40s/early 50s it actually started to feel unhealthy, way too cardio intensive, and I switched to a more balanced cardio vs resistance mix. I think Shaun T did the same!