It turns out insomnia has a positive. (sort of...)
Living Another Day, Thanks to Grandparents Who Couldn’t Sleep claims that age related sleep variations were key to survival. Hence, our ancestral grandparents were critical in human evolution.
“an older member of a community who woke before dawn might have been crucial to spotting the threat of a hungry predator while younger people were still asleep. It may explain why people slept in mixed-age groups through much of human history.”
I know many people who could be deemed official nighttime ‘spotters!’ Heck... between my lack of sleep, and hearing, my tribe/community would have been safe from any hungry predator.
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