A new study suggests that parents of sons might be trading brain cells for boys. Conducted by sharp minds at Columbia University and Charles University, published in the esteemed Journal of Psychiatric Research, this deep dive involved 30,000 participants over 50, including a hefty 13,000 with at least one son. Forget the usual bedtime stories; these parents were put through their mental paces with word recall and number games.

The standout finding? Parents of sons reported more concentration blips and memory meltdowns than those with daughters. The more the boys, the merrier the forgetfulness, it seems. While the precise reasons remain a mystery, researchers suggest daughters’ knack for providing emotional and practical support might play a vital role. “Daughters often fill the shoes of informal caregivers,” says Katrin Wolfova, the study’s lead author, hinting at why they might keep parents’ brains feeling a little less scrambled.

Of course, lifestyle, genetics, and diet might also have a say in it, but when it comes to maintaining mental agility, having daughters might just be the brain’s secret weapon.

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