Or maybe people just openly care more. The average guy is going to start losing his hair in his 30's if not before. If no one was going to the doctor about it before, that explains the "sudden rise" all by itself.
In general, more guys now care about how they look just like women do. It used to be taboo for a guy to think about botox. Now, everyone past 40 is doing it.
What I do hate is how some professionals will make statements like this as if they have some personal issue with men working out more. Would you really want to see more out of shape people with hair even if there was a chance in hell she was telling the truth?
I make "observations" all of the time that I may not write down in a professional sense. The difference is, I am well aware that if I am interviewed by a magazine, I might want to leave out the shit I can't really support scientifically.