Interesting articles in Scientific American

[Berri]

https://www.scientificamerican.com/arti ... rs-at-bay/

If you go to this page, you'll an article about testing Alzheimer mice with bright lights and certain sounds and of how they improved. There are other articles on Alzheimer's, too.

Cheers, Berri

[sarahb12]

The frequency that works is in the range of our AC, which is 50 or 60Hz, depending on which country, so I wonder if we are already reaping some of that benefit with lights and sound (fans?). I also wonder if we will lose that benefit with LED lighting because they get turned into a DC voltage.