January 21, 2014 | Jana

My experiences of studying until late have persuaded me that staying awake overnight is bad for my health. But can the effects be serious?

Scientists looked at changes to the bodies of night-shift workers at the molecular level. With mistimed sleep, 97% of the genes that are usually synchronised to daily cycles lost their specifically timed activity. Such disruption has been linked to diabetes, heart attacks and obesity. I won't be staying up late tonight...

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Overnight studying

Jet lag, night work shifts and late-night studying can throw some of our genes into chaos.

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Image: Flickr/Alvin Trusty

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