Humans
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Humans
Skulls reveal Neandertal’s hodge-podge genealogy
A new analysis of ancient hominid skulls reveals a patchy anatomical start of the Neandertal lineage.
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Health & Medicine
Pregnant women on the hook for calculating risks, benefits of fish
New draft FDA guidelines on fish for pregnant or nursing women make women do the math for how to maximize omega-3 fatty acids and minimize mercury exposure.
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Psychology
Just four questions can identify which ER patients need prompt care
A simple decision tree may find serious ailments in ER patients’ fuzzy complaints.
By Bruce Bower -
Neuroscience
Sunbathing may boost endorphins in the body and brain
UV light makes mice churn out a molecule that is a cousin of morphine and heroin, a finding that may explain why some people seek out sunshine.
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Health & Medicine
Simple blood test detects heart transplant rejection
Heart transplant recipients whose bodies are starting to reject the new organ might carry genetic warning signs.
By Nathan Seppa -
Genetics
Gene variant tied to diabetes in Greenlanders
Greenlanders who carry two copies of a newly discovered gene variant have upwards of 10 times the chance of developing type 2 diabetes.
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Psychology
Children negotiate taking turns surprisingly early in life
Five-year-olds can coordinate decisions with others in a fair way, even when each child has conflicting interests.
By Bruce Bower -
Life
Avian flu could strike Asian poultry markets outside China
H7N9 influenza has a higher chance of spreading to humans in urban areas close to water, researchers predict.
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Health & Medicine
Ulcer microbe changes quickly to avoid immune attack
During the initial weeks of infection, Helicobacter pylori, the bacterium that causes stomach ulcers, mutates at a high rate, apparently to evade the body’s defenses.
By Nathan Seppa -
Environment
E-cigarettes may inflame lungs as much as cigarettes do
Acute lung impacts of e-cigarettes and tobacco cigarettes are nearly identical, new study finds.
By Janet Raloff -
Neuroscience
Brain signal reappears after ADHD symptoms fade
In adults who no longer have ADHD, brain synchrony appears.
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Health & Medicine
Obesity on the rise globally
Some 2.1 billion people, almost 30 percent of the world’s population, are overweight or obese.