alt Hacker News> They rather make obvious habits effortless.
I wouldn’t call taking the stairs in a pre-elevator world “effortless”, rather it was just the only option.
I also think better food handling/storage/treatment/blah means we absorb & retain more of the calories that we consume.
The vast majority of accessible American foods these days are over-processed, poor quality ingredients with fancy marketing on the boxes. (And stories about how the brand was started by a grandmother a century ago...)