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Why do you eat more when you're tired?

Posted at 6:50 AM, Apr 03, 2017
and last updated 2017-04-03 06:50:28-04

A new study says we eat more when we're tired because of our response to certain smells. 

Researchers at Northwestern University say a lack of sleep makes your brain more sensitive to the smell of certain foods. 

When exposed to the aroma of potato chips or cinnamon rolls, people who were sleep-deprived showed more brain activity.