5,014 results
- 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.
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A Man’s Job
Sperm contain an unexpected payload of RNA, a discovery offering insight into infertility, cloning, and contraception.
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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.
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Pushing the Mood Swings
Social and psychological forces sway the course of manic depression.
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Cries and Greetings
Baboon intimacy and detachment present vexing clues.
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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 […]
- 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.
- 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.
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The Meaning of Life
Computers are unscrambling genomes to reveal the secrets in DNA codes.
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Get Rid of the Bodies
Scientists are learning how organisms safely clear out cell corpses.
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18958
The study in “Marijuana may boost heart attack risk” appears to be more about the effects of smoking and deep inhalation than a useful examination of the effects of tetrahydrocannabinol, which is what marijuana smokers seek. The report makes it sound as though this active ingredient is the cause of the marginal increase in heart […]
