That’s a lot of trips from the LazyBoy to the kitchen....
Bathroom trips make up the difference.
Seriously, I have a daughter and family in Tokyo, where an AVERAGE person there walks two miles per day just to get from home to work. Half mile average from the flat to the nearest station; another half mile from the destination station to the office. Multiply by two and an easy two miles per day minimum x five days a week.
That's why you don't see many fat Japanese unless you go over to the Ryogoku neighborhood (where the Sumo Tournaments are held).
“That’s a lot of trips from the LazyBoy to the kitchen....”
My ice-maker is within arm’s reach!