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- Earth
Uranium recorded in high-altitude ice
An international team of scientists has analyzed a lengthy core of ice and snow drilled from atop Europe's tallest mountain to produce the first century-long record of uranium concentrations in a high-altitude environment.
By Sid Perkins -
Disorder Decline: U.S. mental ills take controversial dip
Far fewer people suffer from mental disorders requiring treatment than was initially indicated by two national surveys.
By Bruce Bower - Anthropology
The gene that came to stay
A gene thought by some scientists to foster a bold, novelty-seeking personality, as well as attention-deficit hyperactivity (ADHD), apparently spread substantially in human populations over roughly the past 40,000 years.
By Bruce Bower -
A Man’s Job
Sperm contain an unexpected payload of RNA, a discovery offering insight into infertility, cloning, and contraception.
By John Travis -
Good Grief: Bereaved adjust well without airing emotion
Among bereaved spouses tracked for up to 2 years after their partners' death, those who often talked with others and briefly wrote in diaries about their emotions fared no better than their tight-lipped, unexpressive counterparts.
By Bruce Bower -
Pushing the Mood Swings
Social and psychological forces sway the course of manic depression.
By Bruce Bower -
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18963
I was distressed to read that Science News thinks there are no steroid hormone receptors in insects. Granted, their reproduction is not regulated by steroids, but ecdysone, the molting hormone, is certainly a steroid. There is some evidence that juvenile hormone, the hormone that regulates development and sometimes reproduction, acts through a steroidlike-receptor pathway. Other […]
By Science News - Health & Medicine
Cancer drugs may thwart Huntington’s
Drugs developed to fight cancer could also be effective against Huntington's disease and several related neurodegenerative conditions.
By John Travis - Health & Medicine
Is Snoring a DiZZZease?
Snoring may trigger high blood pressure, which can lead to heart disease or stroke.
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Evolutionary Upstarts
Theories of the evolution of the human mind are evolving, with some researchers now presenting alternatives to the dominant notion that genetic competition for survival during the Stone Age yielded brains stocked with a bevy of instincts for specific types of thinking.
By Bruce Bower -
The Meaning of Life
Computers are unscrambling genomes to reveal the secrets in DNA codes.