Can't sleep? Blame your phone
The study concluded that there was a clear trend for new devices to be bigger, brighter, have higher levels of contrast and emit more blue light.
Nov 15, 2015, 16:14 PM IST
The study concluded that there was a clear trend for new devices to be bigger, brighter, have higher levels of contrast and emit more blue light.
Nov 15, 2015, 16:14 PM IST