Flickering LED lights could treat Alzheimer's disease
 

Twinkling lights aren't just pretty -- if they're flickering at a specific frequency, they could also treat Alzheimer's disease. A group of researchers have tested the effectiveness of LED lights flashing at 40 hertz as a treatment for Alzheimer's on...

https://www.engadget.com/2016/12/09/...ts-alzheimers/