I'd go with very low fat percentage. I had a friend who ran marathons regularly, and he looked older because he was superlean and wiry. Regular people can look

I'd go with very low fat percentage. I had a friend who ran marathons regularly, and he looked older because he was superlean and wiry. Regular people can look older too just by losing weight rapidly: https://www.drugs.com/medical-answers/ozempic-face-3572731/ https://www.drugs.com/medical-answers/ozempic-face-3572731/