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I am, because if a dim petrol light disrupted our sleep cycle, we would have seen sleep cycle changes sooner than 120 years ago. Instead they're correlated with
by minikites 12y ago
I am, because if a dim petrol light disrupted our sleep cycle, we would have seen sleep cycle changes sooner than 120 years ago. Instead they're correlated with the spread of electric light.
- ekianjo 12y agoBut there's ample data in literature about people doing stuff at night even back in the Middle Ages. So now, explain me - if people were sleeping later at night instead of sleeping as soon as the sun goes down, how did that no impact their sleep cycles?