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Re:Exercise Releases Brain-Healthy Protein by searine on Tuesday June 28, 2016 @02:42PM (#11996337)
>Maybe you should be asking the opposite question like why should evolution reward sedentary life?

If you can live a sedentary lifestyle and still produce children, then evolution doesn't care. In fact, an indoors lifestyle is much more fit in the longterm than a life of hard labor.

Evolution isn't trying to create the Platonic Ideal of a human. It just is a thoughtless mechanism to efficiently reproduce DNA.

Re:Exercise Releases Brain-Healthy Protein by pc86 on Tuesday June 28, 2016 @03:31PM (#11996786)
> If you can live a sedentary lifestyle and still produce children, then evolution doesn't care.

Hunter/gatherer humanity did not have the luxury of a sedentary lifestyle, so it did have a negative impact on your ability to produce children for a long time.

> In fact, an indoors lifestyle is much more fit in the longterm than a life of hard labor.

I think "hard labor" is a bit extreme, but even so, working a physically demanding job is still better for your overall health than a sedentary lifestyle of office job + sitting on the couch watching Netflix.

Re:Exercise Releases Brain-Healthy Protein by TillE on Tuesday June 28, 2016 @07:53PM (#11998513)
> better for your overall health

Again, evolution does not care. As long as you can survive to about 40 (long enough to raise children), it makes no difference.

Re:Exercise Releases Brain-Healthy Protein by toasterlovin on Wednesday June 29, 2016 @01:45AM (#11999735)
Older humans have a lot to contribute to the fitness of their children and grandchildren. Power, resources, labor...