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A new study shows health disparities cost Texas billions of dollars; Senate rejects impeachment articles against Mayorkas, ending trial against Cabinet secretary; Iowa cuts historical rural school groups.

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The Senate dismisses the Mayorkas impeachment. Maryland Lawmakers fail to increase voting access. Texas Democrats call for better Black maternal health. And polling confirms strong support for access to reproductive care, including abortion.

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Rural Wyoming needs more vocational teachers to sustain its workforce pipeline, Ohio environmental advocates fear harm from a proposal to open 40-thousand forest acres to fracking and rural communities build bike trail systems to promote nature, boost the economy.

Study: Electronic Screens Impede Children's Sleep

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Tuesday, November 14, 2017   

DENVER – If your kids are falling asleep watching TV or with a cell phone tucked under the covers, they're probably going to bed later and getting much less sleep than kids without access to electronic devices.

Monique LeBourgeois is an associate professor in the Department of Integrative Physiology at the University of Colorado. She's also the lead author on a new study that says children are uniquely vulnerable to sleep disruption from electronic screens. She says because the eyes of young children are not fully developed, the light has a bigger effect on their internal body clock.

"Many parents believe that media - like watching a video or playing a game - calm their children before bedtime but in fact, it may be the exact opposite, and we may be creating the perfect storm to disruption of both the circadian clock and sleep," she warns.

Studies have found that screen time is associated with delayed bedtimes, fewer hours of sleep and poorer sleep quality.

A recent report from the nonprofit organization Commonsense Media showed mobile media device use has tripled among young children aged 5 to 16 in the past six years. LeBourgeois says light is our brain's primary timekeeper, and when it comes to children and adolescents, self-illuminated devices such as smartphones, tablets and televisions bathe kids' eyes in blue light that can keep sleep at bay.

"So this immature eye allows more light to actually hit the retina that signals the internal biological clock," she explains.

LeBourgeois encourages parents to turn off their kids' devices with screens before bed and charge them somewhere outside bedrooms. She also says parents should set an example by keeping TVs, computers, tablets and cellphones out of their own bedrooms.


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