A research report that 'too much looking at PC or smartphone' can not be said to lower the happiness level of young people

Smart phones are rapidly spreading both domestically and overseas, according to a survey conducted by the Ministry of Internal Affairs and Communications, individual smartphone ownership rates of Japanese smartphones in their 20s are 94.2% and those of 13-19 years old are 81.4%, according to a survey by the Ministry of Internal Affairs and Communications, more than 80% I know that I own a smartphone. According to the increase in possession rate of smartphones, the adverse effect of smartphones has also been cried out, but "Nature of science magazine is not saying that too much oversight of smartphone and PC is prominent and adversely affecting young people" I am insisting.

The association between adolescent well-being and digital technology use | Nature Human Behavior
https://www.nature.com/articles/s41562-018-0506-1

Screen time: how much is too much?
https://www.nature.com/articles/d41586-019-00137-6

According to a view research center (PDF file) survey conducted in 2018, almost half of American teenagers are accessible to smartphones, almost half of them are online. Also, Ofcom reported that in the UK youth spent nearly doubling in the past 10 years. Matt Hancock, Secretary of State for Health in the UK on October 2, 2018 issued an urgent warning, "The threat to children's mental health by social media is similar to the threat to physical health by sugar It is said. "

Excessive use of smartphones and tablets exerts greater negative influence on children than viewing TV - GIGAZINE

However, Nature points out that as the dataset becomes more complex, the number of elements increases and it becomes statistically analyzable. As a result, even if analyzing the same data set, both the conclusion that "Smartphone and PC adversely affects the happiness degree of young people" and "Smartphones and PC do not adversely affect the happiness degree of young people" I am insisting.

In a survey conducted by researchers at Oxford University in January 2019, based on more than 40,000 data sets collected from the United States and the UK, analysis of various elements including the use of youth happiness and digital technology It is done. Although it is reported in this paper that "the time to see the screen of young people to be studied is longer, the decline in happiness was seen", but the influence is very small, the fluctuation in happiness degree is about 0.4 It was said that it was%.

In the study, we also examined the relationship with drinking too much, bullying, smoking, sleeping hours, ingesting vegetables, wearing glasses and so on. However, the relevance of these elements and happiness was found to be stronger than the length of time to see the screen. For example, it seems that eating potato on a regular basis was related to a decrease in happiness as much as using digital technology.

Naturally, after giving a preliminary statement that this paper is not the final conclusion, Nature argued that "there is no guarantee that there is relevance between the use of technology and the degree of happiness", and limited reasoning is politic It points out that there is a possibility of distorting the public debate.

Nature says, "The digital revolution is definitely changing the lives of modern people.To obtain more accurate data to understand what kind of influence it is, the results of this survey are young people Emphasizes the need for reliable analytical methods for social big data while looking at the relevance between using technology and happiness. "