What Happened To Americans?

I'm walking into the clinic this morning and shared the elevator with two couples. When the door closed, their combined audible wheezing reminded me of being in the movies and hearing Darth Vader!

These four people were "winded" by being required to walk from their seats in the downstairs clinic to the elevator . . . a "trek" of about 30 feet! Their excessive weight had also resulted in mobility impairment and the need to use both canes and walkers.

What has happened? When did we collectively decide that obesity and immobility were the norm?