Humans
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We summarize the week's scientific breakthroughs every Thursday.
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Health & MedicineTeasing out tea’s heart-healthy effect
Drinking black tea makes a person's blood vessels dilate more easily, which may explain why drinking tea can protect against heart disease.
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Health & MedicineNitric oxide may benefit damaged hearts
A small study in mice suggests that inhaling nitric oxide may protect against tissue damage after a heart attack.
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AnthropologyOut on a Limb
The science of body development may make kindling out of evolutionary trees.
By Bruce Bower -
Health & MedicineSputum Test May Predict Lung Cancer
By zeroing in on aberrations in two cancer-fighting genes, researchers have found a marker for cancer risk that could help doctors screen people for signs of lung cancer early enough for treatment to be effective.
By Nathan Seppa -
Health & MedicineCaffeine may ward off Parkinson’s
Scientists may have found an explanation for why coffee drinking prevents Parkinson's disease.
By John Travis -
Health & MedicineA vaccine to help ex-smokers
By generating antibodies that neutralize nicotine, a vaccine could keep ex-smokers from getting the nicotine high that drives many of them back to their bad habit.
By John Travis -
Health & MedicineBoldly into the breech controversy
Addressing a long-simmering controversy, a large new study has shown that in pregnancies where the baby has positioned itself to emerge feet or buttocks first, the delivery safest for the mother and child is a planned cesarean section rather than a vaginal birth.
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Health & MedicineCancer cells on the move
A new study suggests how a gene recently linked to liver, skin, and pancreatic cancer also causes an often-deadly form of breast cancer.
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HumansOf Rats, Mice, and Birds
Fireworks erupt over an extension of rules to protect lab animals.
By Janet Raloff -
Health & MedicineGene therapy might keep arteries open
Tiny steel-mesh tubes coated with a DNA-containing polymer could prevent arteries from becoming reclogged after cardiovascular treatment.
By Laura Sivitz -
Health & MedicinePath to heart health is one with a peel
Consuming lots of oranges and other citrus fruits, or their juices, can trigger beneficial, cholesterol-moderating changes in the blood.
By Janet Raloff -
HumansScience gets a start on the space station
Although the space station's main laboratories have yet to be launched, scientists are already using nooks and crannies in the existing structure to conduct experiments in biotechnology and physics.
By Ron Cowen