http://www.rd.com/slideshows/how-to-smile-for-better-health/
For Better Health, Smile More
A Pediatrics study of 28 new moms with infants who ranged in age from 5 to 10 months viewed photos of their babies and other babies making different faces while in a functional MRI machine to measure brain activity. When they saw their own babies smiling, key areas in the brain’s “reward center” lit up—the same ones associated with drug addiction. There was less of an effect when the babies were making sad faces or when they looked at babies besides their own.
For Better Health, Smile More
A Pediatrics study of 28 new moms with infants who ranged in age from 5 to 10 months viewed photos of their babies and other babies making different faces while in a functional MRI machine to measure brain activity. When they saw their own babies smiling, key areas in the brain’s “reward center” lit up—the same ones associated with drug addiction. There was less of an effect when the babies were making sad faces or when they looked at babies besides their own.
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