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Parents’ socioeconomic status and children’s inherited DNA differences are powerful predictors of educational achievement. However, new research (n=5,000) suggests that having the genes for school success is not as beneficial as having parents who are highly educated and wealthy.

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Scientists discovered that the dermal sheath surrounding growing hair follicles is a previously unknown smooth muscle in mice. Experiments suggest that this is similar in human hairs. Blocking its contraction with drugs may allow men to maintain the hair they have now, instead of slowly losing it.

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Gender-tailored methods to address harmful mental health effects of childhood adversity may help alleviate current opioid crisis and make treatment more effective. Women with opioid use disorder are more likely than men to have mood and anxiety disorders, and less likely to have conduct disorders.

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Association Between Use of Multiple Classes of Antibiotic in Infancy and Allergic Disease in Childhood (Dec 2019, n=798,426) "all commonly prescribed antibiotics during infancy are associated with subsequent diagnosis of allergic disease"

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Left-handedness is associated with greater fighting success in humans, consistent with the fighting hypothesis, which argues that left-handed men have a selective advantage in fights because they are less frequent, suggests a new study of 13,800 male and female professional boxers and MMA fighters.

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Brains of adolescents struggling with mental-health issues may be wired differently from those of their healthy peers. Research shows clear differences in connective neural pathways, as a function of cognitive control, between the healthy adolescents and those struggling with mental-health issues.

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Caffeine may offset some health risks of diets high in fat and sugar, suggests a new study of rats, by reducing the storage of lipids in fat cells and limiting weight gain and the production of triglycerides. Rats that consumed caffeine gained 16% less weight and accumulated 22% less body fat.

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Evolutionary Changes in Brain Potentially Make us More Prone to Anxiety. Results of the study reveal that our ancestors may have been able to withstand higher levels of anxiety or depression.

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Chimpanzees seen clapping, tapping and swaying along to piano rhythms, spontaneously without training or reward, in a new study in PNAS, suggesting that the urge to dance has a prehuman origin, reaching at least as far back as the primate from which humans and chimps descended around 6m years ago.

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Ability of re-grown Amazon forest to combat climate change 'vastly overestimated'. Secondary forest areas held just 40 per cent as much carbon dioxide as sequestered by parts of the Amazon untouched by humans, casting doubt on their ability to aid in mitigating the crisis.

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Brain-like functions emerging in a metallic nanowire network, reports new Japanese study, able to generate electrical characteristics similar to those associated with higher order brain functions unique to humans, such as memorization, learning, forgetting, becoming alert and returning to calm.

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Poverty, lack of social mobility, and government distrust contribute to U.S. gun violence, suggests a new study, which demonstrates that there is a "rich-poor gap" in gun homicide rates, and welfare spending may be related to neighborhood firearm homicide rates in the U.S.

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