Night-light adds ki­los

The West Australian - - NEWS -

It sounds a bit dim, but sleep­ing with a light on could make you gain weight.

A study of 44,000 women found those who snoozed with a TV or other ar­ti­fi­cial light on were at a higher risk of pil­ing on the pounds.

The five-year study by the US Na­tional In­sti­tutes of Health found those who failed to sleep in the dark at night had a 17 per cent in­creased chance of gain­ing 5kg or more. They were 22 per cent more likely to be­come over­weight and 33 per cent more likely to get obese.

Re­searchers be­lieve this was be­cause dis­rupted sleep af­fects hor­mone bal­ance and causes peo­ple to seek out en­ergy-dense, fatty food.

Find­ings were pub­lished in the JAMA In­ter­nal Medicine jour­nal.

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