The blood glucose elevating effects of short-wavelength light at night are ubiquitous, potentially reflecting a cortisol increase.

“But the blood glucose elevating effects of of short wavelength light at night seem pretty ubiquitous. There's a study, I don't know if you're familiar with it, um it was done, it was published in the Proceedings of the National Academy of Sciences. They had um people, I think it was kids actually, sleep under a 100 lux overhead light. So, their eyes are closed. 100 lux is very dim. >> And as compared to complete darkness, or it wasn't complete darkness, I think it was a uh like a 1 to 10 lux lighting condition, you saw elevated blood morning glucose. >> Yeah. >> Which is not good, right? That that reflects a cortisol increase.”