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The present study found that hours of technology use including television, social media, video games, internet, and portable devices had a significantly negative correlation with a high level of physical activity. Therefore most people would rather have more screen time than get their physical activity in. www.mdpi.com

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The present study found that hours of technology use including television, social media, video games, internet, and portable devices had a significantly negative correlation with a high level of physical activity. Therefore most people would rather have more screen time than get their physical activity in. www.mdpi.com

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Screen Times effects your posture because when you are on your phone you hunch down your shoulders and every time that you do that you are creating a poor posture. This can lead to arthritis, nerve pain, headaches and other.

https://www.ivyrehab.com/news/tech-neck-how-technology-is-affecting-your-posture/

https://rothmanortho.com/stories/blog/how-computer-and-smart-phone-use-affect-the-spine

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researchers found that people who used their smartphones for more than five hours a day were 43% more likely to be obese than those who scrolled for less time. 

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researchers found that people who used their smartphones for more than five hours a day were 43% more likely to be obese than those who scrolled for less time. 

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Screen time is linked to a host of insomnia symptoms in teenagers. By delaying the release of melatonin, screen time pushes back bedtime and leads to less restful sleep.

https://www.sleepfoundation.org

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This study found that, "...dietary habits showed that the longer the screen time the increased the odds of unhealthy dietary habits such as skipping breakfast, consuming fast food frequently, and eating sweets frequently, and the decreased the odds of healthy dietary habits such as consuming a second fruit every day, consuming fresh or cooked vegetables or/and fish regularly, in both genders, after adjusting for several covariates." " Furthermore, the longer the screen time the increased the odds of total and central obesity, insufficient sleep."

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Abstract

Objective: The aim of the study was to determine the associations between recreational screen time and dietary habits and lifestyle factors in a representative sample of schoolchildren.

Methods: Observational, cross-sectional study data were derived from 177,091 children aged 8 to 17 years participating in a health survey. Recreational screen time, physical activity (PA), and sleeping hours were assessed through self-completed questionnaires. Dietary habits were evaluated via the Mediterranean Diet Quality Index for children and adolescents (KIDMED) test. Anthropometric and physical fitness (PF) estimations were obtained by trained investigators.

Results: Binary logistic regression comparisons between screen time levels (e.g. < 2 vs. ≥ 2 - < 3 h/d, < 2 vs. ≥ 3 - < 4 h/d and < 2 vs. ≥ 4 h/d) and dietary habits showed that the longer the screen time the increased the odds of unhealthy dietary habits such as skipping breakfast, consuming fast food frequently, and eating sweets frequently, and the decreased the odds of healthy dietary habits such as consuming a second fruit every day, consuming fresh or cooked vegetables or/and fish regularly, in both genders, after adjusting for several covariates. Furthermore, the longer the screen time the increased the odds of total and central obesity, insufficient sleep (< 8-9 h/d), and inadequate PA, and the decreased the odds of healthy PF.

Conclusions: The longer the screen time the unhealthier dietary habits and lifestyle profile among schoolchildren, after adjusting for several covariates.

Keywords: Mediterranean diet; adolescents; children; screen time.

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national center for biotechnology information

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Screen time and its effect on dietary habits and lifestyle among schoolchildren - PubMed

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Objective: The aim of the study was to determine the associations between recreational screen time and dietary habits and lifestyle factors in a representative sample of schoolchildren. Methods: Observational, cross-sectional study data were derived from 177,091 children aged 8 to 17 years participating in a health survey.

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Researchers have found that heavy users of screens -- defined as those who use screens an average of 17.5 hours per day -- reported the least healthful dietary patterns and the poorest health-related characteristics compared with moderate and light users, who averaged roughly 11.3 and 7 hours of screen use per day

Association between screen time use, diet and other health ...

https://www.sciencedaily.com

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Cell phones, computers and TVs emit blue light. And exposure to that bluish light during the two hours before bed can keep us from getting a good night’s rest, a new study finds.
https://www.sciencenewsforstudents.org/article/evening-screen-time-can-sabotage-sleep

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Blue light from electronic devices can impair the body's ability to sleep, making it hard to focus in the morning.