Shrinking is most definitely an aging thing. The skeleton compresses as you age. I used to be 5'4" and I'm down to 5'2".
Edited to add: Two things that continue to grow as you age are your nose and your ears.
This post was edited by SpunkySenior at February 25, 2017 9:39 AM MST
I didn't know that could happen, Mom, but it's the only explanation. My kids are all in their 50s and there's no way I'm older than that. Must be something in the drinking water.