From United Press International:
Tinted glasses may help device-users get a better night of sleep
For the tech-obsessed who use their smartphones, laptops and tablets right before bedtime, a small new study suggests that inexpensive amber-tinted glasses might guarantee sound slumber.
The glasses block the blue-wavelength light emitted from many hi-tech devices. That light suppresses the brain's production of melatonin, a hormone that regulates sleep and wake cycles.
But in the study, researchers found that adults diagnosed with insomnia got about 30 minutes more sleep when wearing wrap-around amber lenses for two hours before bedtime.
"We expect that blue-light exposure before bedtime might contribute to sleep difficulties or exacerbate sleep problems in individuals who already experience difficulties, so we were not surprised there was an improvement in sleep quality," said study author Ari Shechter. He's an assistant professor of medical sciences at Columbia University Medical Center in New York City.
They did a double-blind study. Personally, I run f.lux - works great. Free download for Win/iOS/Linux and Android Available here: just get flux
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