According to the Daily Mail, new smartphone apps are available that aim to transform the blue light emitted from electronic devices for better sleep.
According to an in-depth report by Andy Betts at makeuseof.com most of the blue light filtering apps work in a similar way.
When the clock on your phone shows that the sun has set, the apps place a red overlay on the screen to transform its colour temperature.
‘This gives everything a red hue, which takes a little getting used to,’ the report says.
‘But it also cancels out the negative effects of the blue light, and massively decreases glare.
‘Even if you’re skeptical about it improving your sleep, you will immediately notice a reduction in eye strain when using your phone in a dimly lit room.’