Let a breakthrough in measuring body clocks ease the ills of shiftwork

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Let a breakthrough in measuring body clocks ease the ills of shiftwork
HealthHuman BodyCircadian Rhythm
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New tests to gauge an individual's circadian rhythms could be put to good use helping night workers fend off the ill effects of their unsocial hours

The graveyard shift is aptly named. People who work at night have an elevated risk of health problems including heart attacks, type 2 diabetes and depression. So greatly increased is their chance of getting cancer that the World Health Organization has declared shift work a probable carcinogen.

Toiling while the rest of us slumber, these workers often go unseen, though their labour underpins medical and emergency services on which we all depend. We may rely on them as a matter of life and death, yet the impact of their hours on their own health is an ironic and unfortunate inevitability. That could be set to change with the development of tests that can finally discern the timings of someone’s internal body clock as it relates to the ticking of external time . But the real potential will be using them to give a window into the inner workings of those whose body clocks are seriously disrupted, offering them better treatment for the effects of working at night, more intelligent tools to manage their shift patterns and, one day, to ensure they get medical treatment at times that work with the clock their body is ticking to. This offers a real chance to alleviate the health burden of night work and give such staff a new lease of life. Employers must wake up to this opportunity.

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