Stressed-out mothers are twice as likely to give birth to a girl

New research from the University of Granada found that stress could help determine sex.

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  • A new study found that women with elevated stress before, during, and after conception are twice as likely to deliver a girl.
  • One factor could be that sperm carrying an X chromosome are better equipped to reach the egg under adverse conditions.
  • Another factor could be miscarriage of male fetuses during times of stress.
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Despite social pressure, boys and girls still prefer gender-typical toys

Fifty years of research on children's toy preferences shows that kids generally prefer toys oriented toward their own gender.

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  • A recent meta-analysis overviewed 75 studies on children's gender-related toy preferences.
  • The results found that "gender-related toy preferences may be considered a well-established finding."
  • It's a controversial topic: Some people argue that these preferences stem from social pressure, while others say they're at least partly rooted in biology.
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Help your kids, but not too much, says new Stanford study

Flying that helicopter too low is counterproductive.

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  • A new study at Stanford finds that giving too much direction to children can be counterproductive.
  • Children that are given too much advice display more difficulty regulating their behavior and emotions at other times.
  • The researchers suggest a balance between being involved while allowing children to figure things out on their own.
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Microplastics have been found in human placenta

More evidence that we're drowning in microplastic particles.

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  • Italian researchers have discovered microplastic particles in human placenta.
  • Out of six collected placentas, four contained colored plastic microparticles.
  • That petrochemical pollutants are present in such a critically important organ is alarming.
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Yes, more and more young adults are living with their parents – but is that necessarily bad?

Having grown kids still at home is not likely to do you, or them, any permanent harm.

Photo by Parker Gibbons on Unsplash

When the Pew Research Center recently reported that the proportion of 18-to-29-year-old Americans who live with their parents has increased during the COVID-19 pandemic, perhaps you saw some of the breathless headlines hyping how it's higher than at any time since the Great Depression.

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