>>699828It was probably to show that she was really drained, not just literally that wrinkly. It's anime, so of course it's exaggerated. You don't get like that until you're in your 70's. My parents are in their mid 60's and neither has that problem yet.
You can stay healthy and keep up your appearance as you age, it mostly shows in your face and weight. Hence why women love plastic surgery, makeup and try so hard to watch their figure.