Tuesday, 17 December 2019

What's the best colour lighting for sleep?

Contrary to popular belief, the blue light from screens might not be that bad, researchers say.

from BBC News - Technology https://ift.tt/2Er4L0m

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In the Land of the Very Old

Jan 23, 2024 — by Sam Toperoff in  Original  for THE SUNDAY LONG READ 1. Passports, or Prescriptions I am writing this in a blue notebook I ...