4 ms·

How does this work though? 11 pm the sky is still light blue here. 3 am the sky is light blue again. 3:30-4:00 is basically daylight outside already. Do people

How does this work though? 11 pm the sky is still light blue here. 3 am the sky is light blue again. 3:30-4:00 is basically daylight outside already. Do people in northern latitudes have chronic inflammation during summer then?

smt88 2y ago
There are a lot of variables to consider, but it is suspected that people in northern latitudes (or cities) have health issues due to nighttime light exposure. Controlling for variables as best you can, there seems to be a slightly increases risk of cancer, for example.
- Aerroon 2y ago
  That's interesting! And I'm guessing the lack of daylight in winter has its own effects too.
  - smt88 2y ago
    I'm sure it does, especially for non-white people. Vitamin D deficiency is a widespread problem.
wafflemaker 2y ago
They are definitely much more skilled in shutting off the light in summer, especially in bedrooms. Comparing Radom 51°N and Trondheim 63°N or even cities in Norway further out north, every single bedroom has proper shades. The summer light is also a bit of a problem in Poland, but for a very short time.
- Aerroon 2y ago
  Maybe not 63N but a lot of people still live north of 57N. And from my experience proper blackout curtains are pretty rare.
Espressosaurus 2y ago
When I go to the arctic circle areas, all the bedroom windows have full proper blackout curtains. It doesn't have to be an issue.