Long time young people watching the screen will awake

For a long time, parents suspect that the child is not sleeping well with long-term use of computers or smart phones. Now, there are professionals who have given a positive answer: the longer they spend on a computer or cell phone, the less they sleep, especially when they use these devices before going to bed.
Experts say the evidence so far is so strong that they urge health regulators to overhaul the guidelines for the use of electronic devices for teenagers.
The research team in 2012 in Western Norway in Hordaland county (Hordaland) conducted a scientific investigation, the subject of the investigation, nearly 10 thousand people aged 16 to 19 year olds. On Tuesday, the team published its findings in the Journal BMJ Open.
The teenagers were asked to answer several questions, such as their sleep habits, the time spent staring out of the screen, and the type of equipment they use.
Respondents said they had an average of eight to nine hours of sleep to feel rested.
The survey found that those who were staring at the screen for more than four hours a day increased their chances of sleeping less than five hours in the night by a factor of 3.5.
In addition, the group needs more than 1 hours to sleep the chance to increase by 49%. Average adult sleep time less than 30 minutes.
The study also confirmed that the use of electronic products an hour before bed will greatly affect the length of sleep and sleep.
Teens who use a computer or cell phone before going to bed more than 60 minutes to get a chance to go to sleep increased by a factor of between 52% and 48%, and their chances of sleeping less than one to two hours increased by between 53% and 35%, respectively.
The study led by the University of Bergen, Norway (University of Bergen) Mary Heisen (Mari Hysing) on the results are described as follows.
First of all, teenagers often sleep late, the time spent on the display of the occupation of the sleep time.
Secondly, the light interference of human physiological clock emitted by electronic devices, which may lead to muscle pain, nervousness or headache, such as long time playing the game could lead to the situation.
In addition, the media content may cause an increase in psychological arousal, which means that the mind is supposed to slow down the evening suddenly accelerated.
The American Academy of Pediatrics (American Academy of Pediatrics) to watch TV in the 2004 issue of the provisions of the guidance in the bedroom not.
With the progress of science and technology, it seems that this guidance also need to be included in the computer, smart phones, MP3 players, tablet PCs and other electronic devices, such as game consoles specific provisions.