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Health & MedicineEasygoing, social people may get dementia less often
Don’t worry, be happy: People who are largely unstressed by mundane events seem less likely to develop dementia in old age than people who sweat the small stuff.
By Nathan Seppa -
EarthClearing some air over warming in Europe
A decline in fog and haze clears the air but also fuels 20 percent of the warming in Europe, a new study concludes.
By Sid Perkins -
EarthTop of Everest is an ozone overdose
Wafts from lower atmosphere, polluted regions bathe the peak in amounts that exceed EPA limits.
By Sid Perkins -
Health & MedicineEpigenetics reveals unexpected, and some identical, results
One study finds tissue-specific methylation signatures in the genome; another a similarity between identical twins in DNA’s chemical tagging.