COOL SCIENCE FACT
Do you feel like you are getting wider as you grow older?

WELL: You are indeed getting WIDER. Even if you are able to maintain your 20 something weight. YOUR pelvic bone continues to grow.

WHAT THIS MEANS: An x-ray taken of a 79 year old PELVIC bone compared to a 20 year old will show roughly a 1 inch increase in size.
This translates to a 3 inch increase in waist size.

SO:
Even if you are able to maintain your 20 year old weight there is a chance that your former size 26 waist may increase to a size 29 by the time you reach 79 years old WITHOUT GAINING an ounce of body fat.