Humans
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We summarize the week's scientific breakthroughs every Thursday.
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Health & MedicineCell phone research suggests fetal risk
Constant exposure of pregnant mice to devices’ radiation is linked to behavioral and brain abnormalities in offspring.
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EarthNanopollutants change blood vessel reactivity
Tiny particles alter normal vessel functions, animal studies show.
By Janet Raloff -
HumansEvolution takes Asian refuge
Multiple humanlike species may have arisen in cold-weather retreats and then interbred with ancient people.
By Bruce Bower -
Health & MedicineRetina can help reveal brain health
Among older women, diseased blood vessels at the back of the eye are linked to lower scores on mental tests and other signs of possible ministrokes.
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HumansTeens win big at science competition
The top awards in the 2012 Intel Science Talent Search go to young scientists working on cancer, innovative sources of energy and behavioral genetics.
By Devin Powell -
PsychologyPi master’s storied recall
Remembering more than 60,000 consecutive numbers takes exhaustive practice at spinning yarns.
By Bruce Bower -
HumansScience competition finalists go public
Public day allows high school students to present their projects.
By Devin Powell -
Health & MedicineA dash of marrow helps kidney transplant
A new approach enables researchers to wean some patients who receive poorly matched kidneys off immune-suppressing drugs
By Nathan Seppa -
Health & MedicineExcess salt may stiffen heart vessels
As sodium in diet increases, a coronary risk factor independent of blood pressure escalates, according to a study in middle-aged U.S. men.
By Janet Raloff -
HumansTechnique may reveal where it all began
A new strategy overcomes a distance quandary as it tracks the origins of widespread phenomena — from an E. coli outbreak to a fad.
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HumansModern era brings death to words
An analysis of books published over two centuries shows how words are born or succumb to shifting social and technological influences.
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PsychologyKids flex cultural muscles
Young children, but not chimps or monkeys, generate collective leaps of knowledge.
By Bruce Bower