I used to have a grand slam crush on Bjorn Borg in the 70s. (You might say, "Who didn't this girl have a crush on?" And you'd have a point.) Anyway, I just caught a glimpse of him and his gorgeous now-grey hair in the stands at Wimbledon and thought here's another man who looks better at 50-something than he did in his so-called prime. What's up with that?