I haven’t noticed a great slowdown in healing/recovery - I had a knee replacement six years ago and recovered well from that. Never had COVID, rarely get colds. I feel like my health is generally better now than in my youth, when I drank, smoked and took drugs. When the doc suggests I lose weight I want to show him pix of my speed-addled self in the 70s. I was super slim! But so bloody unwell.
54 but much the same story. I’m healthier now in many ways than I was in my youth.