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Study looks at why screen time can disrupt sleep

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From the Salk Institute press release: For most, the time spent staring at screens — on computers, phones, iPads — constitutes many hours and can often disrupt sleep. Now, Salk Institute researchers have pinpointed how… 

Study suggests Twitter can reveal our shared mood

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From the University of Bristol press release: In the largest study of its kind, researchers from the University of Bristol have analysed mood indicators in text from 800 million anonymous messages posted on Twitter. These…