But, of course, it is better not to sit on a smartphone before going to bed. It is best to put it aside two hours before bedtime, and also turn off the computer and TV. Another thing is that not everyone can do this. But if someone uses a smartphone, and another person cannot fall asleep because of it, then this is not useful. Any information – audio and visual – activates the brain and interferes with falling asleep. Therefore, in such cases, you need to find a compromise.