Screen time duration and timing: effects on obesity, physical activity, dry eyes, and learning ability in elementary school children.

ABSTRACT:

Background

As internet use becomes more widespread, the screen time (ST) of elementary school students increases yearly. It is known that longer durations of ST can affect obesity, physical activity, dry eye disease, and learning ability. However, the effects of ST just before bedtime have not been clarified. Therefore, we examined ST duration and timing effects on elementary school children.

Methods

We conducted a survey of 7419 elementary school students in Tokyo, Japan using a questionnaire on food education. ST duration and timing (just before bedtime) served as the explanatory variables, and the relationship between obesity, physical activity, dry eyes, and learning ability was analyzed using logistic regression analysis. Gender, school year, height, and weight were con

SUBMITTER: Mineshita Y 

PROVIDER: S-EPMC7916284 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature