Social anxiety and loneliness over time (cross-lag design)

The study used a cross-lag panel design to establish temporal precedence. Photo: Roman Samborskyi/Shutterstock People who are socially anxious are often lonely, too. But which comes first? Loneliness is a perceived lack of social connection. Loneliness arises when there is a mismatch between the social relationships a person desires and those they actually have. It …

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Claim: Using smartphones on the toilet increases hemorrhoid risk

The study found that people who use their smartphone on the toilet are more likely to have hemorrhoids. How strong is their evidence?   Photo: Svitlana Hulko/Shutterstock Is there any relationship between using your smartphone on the toilet and your hemorrhoid risk? Let's get into it.    A study on this topic did find an association. …

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Emoji use predicts narcissism

Were all the variables in this study measured? Were any manipulated? Photo: Caftor/Shutterstock Psychology Today columnist Sebastian Ocklenburg summarized a recent study under the headline, The Dark Side of Emojis: A Surprising Link to Narcissism. Let's take a look. It's a recent correlational study that tested the link between various personality traits and emoji use. …

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Childhood physical activity and teen depression

The study found that kids who spent more time in physical activity during ages 6-9 were less likely to be depressed at age 15. Photo: PeopleImages.com - Yuri A/Shutterstock The online magazine Study Finds has a new summary of a developmental psychology study. The headline focuses on the relationship between childhood screen time and teen …

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Emotional and behavioral outcomes of bed-sharing with infants

Is this non-bed-sharing baby more or less likely to show emotional or behavioral symptoms? Photo: morrowlight/Shutterstock Bed sharing, in which parents sleep in the same bed with their infants, is a fairly common practice in North America and the United Kingdom. Parents who bed-share sometimes do so to facilitate breastfeeding, or because they believe it …

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Can stress turn your hair gray?

Correlational and experimental research seems to converge on the conclusion that stress causes gray hair. Photo: Kunlathida6242/Shutterstock Can stress turn your hair gray? Here's a story on gray hair research, written by a New York Times science journalist. In our culture, we certainly believe that gray hair can be caused (in some cases at least) …

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Really? Prenatal cannabis exposure and early language development

Photo: Viacheslav Lopatin/Shutterstock A story in PsyPost was headlined with, Prenatal cannabinoid exposure appears to have a strange impact on early language development.  You might have noticed that the verb phrase, "has a strange impact on" is a causal one. We are being asked to believe that prenatal exposure to cannabis causes something in children's …

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Playing outside and myopia

In one study, the more time kids spent outdoors, the less likely they were to develop myopia. Photo: Evgeny Atamanenko/Shutterstock It's summertime--when kids head outdoors for beach time, pool parties, and picnics. Time spent outdoors is not only fun; it's also associated with lower rates of near-sightedness (myopia).  A journalist from NPR covered this topic …

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Exercise and health: Practice with mediators

Exercise is good for us. Brain-based mediators help explain why. Photo: muse studio/Shutterstock This summary of exercise research, written by a journalist for the New York Times, is a good opportunity to practice diagramming mediators: How exercise strengthens your brain.  Here is one passage from the article: Exercise offers short-term boosts in cognition. Studies show …

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“Reading for pleasure helps kids’ brain development”

  The study measured reading for pleasure and a variety of cognitive, behavioral, and biological variables at multiple points throughout childhood. Photo: Samuel Borges Photography/Shutterstock An article for the general public led with this headline: "Reading for pleasure helps kids' brain development". The story in this post comes from coverage in The Conversation and Scientific …

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