Laptops, smartphones and the iPad are shining bright light into our eyes until just before we doze off. There's growing concern these glowing gadgets may fool our brains into thinking it's daytime. http://feeds.feedburner.com/~ff/rss/...?d=yIl2AUoC8zA http://feeds.feedburner.com/~ff/rss/...?d=7Q72WNTAKBA http://feeds.feedburner.com/~ff/rss/...H4:V_sGLiPBpWU http://feeds.feedburner.com/~ff/rss/...?d=qj6IDK7rITs http://feeds.feedburner.com/~ff/rss/...H4:gIN9vFwOqvQ
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