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How breastfeeding is linked to being a righty or lefty

IANS  |  New York 

Are you a leftie or a The duration for which a child is breastfed may determine or the dominant hand, says a research.

The study, from the University of Washington, suggests that the prevalence of left-is lower among breastfed infants.

Children breastfed for longer than nine months were associated with the prevalence for righthandedness.

On the other hand, bottle fed infants were associated with left-

The reason could be because the region of the brain that controls handedness localises to one side of the brain.

Possibly, optimises this process towards becoming right or left-handed, the researchers explained.

"We think optimises the process the brain undergoes when solidifying handedness," said Philippe Hujoel, a from the varsity.

"That's important because it provides an independent line of evidence that may need to last six to nine months," Hujoel added.

For the study, the researchers included 62,129 mother-child pairs.

The findings, published in the journal Laterality: Asymmetries of Body, Brain and Cognition, showed that breastfeeding for less than one month, one to six months, and more than six months, when compared to bottle feeding, was associated with a nine per cent, 15 per cent and 22 per cent decreased prevalence of non right-handedness, respectively.

However, the study does not imply that breastfeeding leads to right-handedness, Hujoel emphasised.

Handedness, whether it be right- or left-handed, is set early in fetal life and is at least partially determined by genetics, he noted.

--IANS

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(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)

First Published: Tue, January 08 2019. 16:24 IST
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