We survived because of movement, and other natural attributes. "Progress" (i.e., a forced shift from proactive living entities to reactive consumers) comes along and suddenly our evolutionary past is denied (usually for profit). There's nothing wrong with profit, unless it is the primary measurement of success and progress.

Of course there's collateral damage, we're denying a massive chunk of our evolutionary makeup, our very nature. Another study to confirm this? Perhaps we're not the advanced species we make ourselves out to be?

I disagree that conjectures are equal to knowledge. The results might not be unexpected but you never know until you actually take a closer look.

The study is not very rigorous.

A limitation of the study was that participants reported their own levels of physical activity, so there is the possibility that they would not remember their levels exactly.

Instead of involving a RCT, we have a survey study.

That is a safe assumption if you are deciding whether or not to exercise, but that doesn't mean we have learned everything there is to learn about the effect of exercise.

> let’s be done with it

... and start using this useful information to formulate public policies.