Why is it that men from the 50s, 60s, and 70s had such handsome and well-defined faces, while many in the newer generation don’t seem to have that same level of attractiveness? What is the reason behind this shift in appearance?”

I've noticed something interesting: most people in the newer generation don't seem to have those sharp, defined facial features anymore. I remember looking at old photos of my grandfather—even though I don't recall every detail of his youth, I clearly remember he had a very masculine, long, and structured face. What exactly made men from the 50s, 60s, 70s, and even the 90s look so handsome and rugged? Can anyone explain the reason behind this change?"