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By Nico Kolokythas PhD Researcher in Strength & Conditioning
https://www.readbyqxmd.com/read/29355336/decreases-in-psychological-well-being-among-american-adolescents-after-2012-and-links-to-screen-time-during-the-rise-of-smartphone-technology
#1
Jean M Twenge, Gabrielle N Martin, W Keith Campbell
In nationally representative yearly surveys of United States 8th, 10th, and 12th graders 1991-2016 (N = 1.1 million), psychological well-being (measured by self-esteem, life satisfaction, and happiness) suddenly decreased after 2012. Adolescents who spent more time on electronic communication and screens (e.g., social media, the Internet, texting, gaming) and less time on nonscreen activities (e.g., in-person social interaction, sports/exercise, homework, attending religious services) had lower psychological well-being...
September 2018: Emotion
https://www.readbyqxmd.com/read/29167102/coffee-consumption-and-health-umbrella-review-of-meta-analyses-of-multiple-health-outcomes
#2
REVIEW
Robin Poole, Oliver J Kennedy, Paul Roderick, Jonathan A Fallowfield, Peter C Hayes, Julie Parkes
Objectives  To evaluate the existing evidence for associations between coffee consumption and multiple health outcomes. Design  Umbrella review of the evidence across meta-analyses of observational and interventional studies of coffee consumption and any health outcome. Data sources  PubMed, Embase, CINAHL, Cochrane Database of Systematic Reviews, and screening of references. Eligibility criteria for selecting studies  Meta-analyses of both observational and interventional studies that examined the associations between coffee consumption and any health outcome in any adult population in all countries and all settings...
November 22, 2017: BMJ: British Medical Journal
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