The lights that are used in experiments where you perturb people's circadian rhythm a. la The Geometry of Biological Time https://lab.rockefeller.edu/cohenje/a

The lights that are used in experiments where you perturb people's circadian rhythm a. la The Geometry of Biological Time https://lab.rockefeller.edu/cohenje/assets/file/098CohenBookReviewGeometryBiologicalTimeWinfreeBullAMS1982.pdf https://lab.rockefeller.edu/cohenje/assets/file/098CohenBook... (review) are really bright, as our the lights used for treating SAD. I always thought the fear over screens was the kind of bogus thing people wanted to believe in.