#6434
If you don't get a good night's sleep, everything in your life will be seriously affected, even fatal! In order to have a good sleep, in addition to a quiet environment, some auxiliary means are also necessary, such as sleep aid applications such as BetterSleep, which can make it easier and faster for you to fall asleep and sleep more soundly. If you are still troubled by insomnia, light sleep or headache at night, then this tool may become one of your must-have apps.

#4382
Nowadays, many display devices are added the "automatic brightness adjustment" function, which can reduce the eye harm from screen light to a certain extent. But this is far from enough, because more eye injury caused by display is from slant cold blue spectrum. It is one of the main inducements that cause human cerebral cortex to become overexcited and unconsciously stay up too late, even result in sleep disorder or insomnia