Body clock disrupter

Eat­ing iron-rich food at night and stay­ing awake raises blood glu­cose

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Eat­ing iron-rich food while work­ing grave­yard shifts af­fects the cir­ca­dian clock of the liver, rais­ing glu­cose

IF YOU work grave­yard shifts, it is bet­ter to avoid iron­rich food at night. It has been found that food with high iron con­tent dis­rupts the cir­ca­dian clock of the liver. The body's main cir­ca­dian clock that reg­u­lates sleep and eat­ing is in the brain. But other tis­sues, such as the liver, have their own cir­ca­dian clocks and work on their own sched­ule. The cir­ca­dian clock of the brain is set by light which tells when to sleep and when to wake, while the cir­ca­dian clock of the liver (which reg­u­lates blood glu­cose lev­els) is set by food in­take. Tests on mice have shown that eat­ing food high in iron at night puts the cir­ca­dian clock of the liver out of sync with that of the brain, re­sult­ing in ab­nor­mal blood glu­cose lev­els. Dis­rup­tion of cir­ca­dian clocks is be­lieved to be a cause of type 2 di­a­betes, obe­sity and can­cer. Di­a­betes, Oc­to­ber 2014

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