The cause is the photoreceptor in your eyes, called Melanopsin. Recent research suggests that exposure to blue light before sleep may distort your natural (circadian) rhythm and cause inability to fall asleep. WARNING: Android O does no allow the app to cover your notifications any more.
Are you having trouble falling asleep? Are your kids hyperactive when playing with the tablet before bed time?Īre you using your smart phone or tablet in the late evening? Twilight may be a solution for you!
