In the annals of women who aged well, we must stop now and pay homage to Jane Fonda, who, in addition to winning seven (!) Academy Awards for Best Actress (and one for Best Supporting Actress), also was at the founding of the whole video workout genre, with the Jane Fonda Workout of 1982.
She eventually sold 17 million workout videos, on VHS tape of course. It was the best-selling workout series of all time.
Watch the video a little bit. Looking good there Jane!
She was 45.
Apparently, she did not only make videos, she actually taught live classes at that time, in Beverly Hills.