Health & Medicine
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LifePulsing blob makes memories sans brain
Slime molds create a GPS navigation system based on their own gooey trails.
By Susan Milius -
EarthFish in mom’s diet may alter kids’ behavior
Eating fish that's low in mercury during pregnancy may reduce the risk that a woman's child shows signs of attention-deficit/hyperactivity disorder.
By Janet Raloff -
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LifeScent Into Action
Rodent responses to a whiff of predator may offer clues to instinct in the brain.
By Meghan Rosen -
LifeBlack mamba bite packs potent painkiller
Scientists find that a component of snake venom blocks pain-sensing nerve signals.
By Tanya Lewis -
Health & MedicineCommon heart treatment fails to help
People prescribed beta blockers are no more likely to avoid a heart attack or stroke than those not getting them.
By Nathan Seppa -
Health & MedicineMale DNA found in female brains
Postmortem sampling suggests fetal cells can slip through the blood-brain barrier.
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TechDegradable devices vanish after use
Technique combines silicon, magnesium and silk for medical implants, transistors and digital cameras that can melt away.
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LifeBreast cancer gets genetic profile
Insights from new data may help improve treatment for some types of disease.
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Health & MedicineTricks Foods Play
Most people would never equate downing a well-dressed salad or a fried chicken thigh with toking a joint of marijuana. But to Joseph Hibbeln of the National Institutes of Health, the comparison isn’t a big stretch.
By Janet Raloff -
Health & MedicineOral MS drug passes tests
A drug called BG-12, similar to a psoriasis medicine used in Germany, supresses multiple sclerosis relapses well, two studies find.
By Nathan Seppa