The facts:
40 year olds are not shaped like 20 year olds.
50 year olds are not shaped like 30 year olds.
60 year olds are not shaped like 40 year olds.
This is independent of weight issues. Weight issues will emphasize it perhaps, but a woman's shape changes with age even if we are not overweight.

So, if you're shaped like a 40 year old don't be moping about not being shaped like a 20 year old...just be glad you're not shaped like a 60 year old. And if you're shaped like a 60 year old don't be moping about not being shaped like a 40 year old...just be glad you're not shaped like a 80 year old. And if you are shaped like a 90 year old, you probably won't be looking in the mirror much anyway...hopefully you'll just be glad to be alive and kicking!