Arnold looked really good for his age for a long time
and then somewhere along the way he got that older
Grandpa look.
Someone mentioned his Governorship which does age men.
He had the genetic heart problem and had to slow down the weight training.
He is a Germanic type white guy who stayed fairly to deeply
tanned from around 20 well into his 40's.
(This will age your skin greatly if you are not brownish/black.
He had grey hair by about 30 years old. I'm talking very grey
which would seem to indicate accelerated aging even if it's only 10-20%.
(But what a life) Probably one in a billion!Here he is at 50-51 in 1999 and he looks youthful and muscular.
Of course he is 66 and Father Time catches everyone.
Pretty funny clip here starting around 4:43.
Arnold with his usual charisma and humor.