I remember a lot of sexy young men looking like this back in the '70s. They tended to be thin. They didn't have big muscles, and they weren't even toned much of the time. People didn't eat a lot of fast food, junk food, or processed food. They ate three home cooked meals a day. A snack might be a piece of fruit or a glass of milk. And they got a little excise. It didn't have to be anything extreme. I wish more guys looked like this today. I miss the short shorts they used to wear, too.