Java and nighttime jobs don't mix

Night-shift workers should avoid drinking coffee if they wish to improve their sleep, according to research published in the journal Sleep Medicine. A new study led by Julie Carrier, a Universite de Montreal psychology professor and a researcher at the affiliated Hopital du Sacre-Coeur Sleep Disorders Centre, has found the main byproduct of coffee, caffeine, interferes with sleep and this side-effect worsens as people age...

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