[mtomczak]

I wonder if there's correlation between below-average physical activity and insomnia? I assume that a lot of coders---by necessity of their task and the tools they use---spend most of a week sitting as opposed to, say, a mail carrier or store clerk. Given that we're a species that evolved to leverage mobility for our survival, it's not a stretch to imagine that our bodies developed a dependency on lactic acid buildup and other "fatigue toxins" as one of the signals that sleepytime is at hand.

Has anyone done this study? It seems like a pretty straightforward study to do if some grad student out there is looking for a paper.

[pmjordan]

It's a recurring topic on HN. There seems to be plenty of anecdotal evidence for it.