Health & Medicine
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HumansNight owls may want to dim their lights
People who spend their evenings in relatively bright light run the risk of stressing their bodies by ratcheting down the production of melatonin. This hormone plays a pivotal role in setting the body’s biological clock – and, potentially, in limiting the development of certain cancers.
By Janet Raloff -
Health & MedicineWhen good cholesterol is even better
It's quality, not just quantity, of high-density lipoprotein that counts in heart disease, study suggests.
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HumansOne in five has no regular doctor
Not "needing" a doc is a primary justification.
By Janet Raloff -
Health & MedicineShingles vaccine linked to lower disease risk
People 60 and over who get the shot are 55 percent less likely to develop the ailment, a large survey shows.
By Nathan Seppa -
Health & MedicinePossible relief for irritable bowel
Those taking an antibiotic whose effects are localized to the intestines fared better than patients getting a placebo pill, two trials find.
By Nathan Seppa -
Health & MedicineSecond chicken pox shot boosts coverage
Giving a follow-up vaccination increases coverage to more than 98 percent of kids who receive it, a study finds.
By Nathan Seppa -
Health & MedicineHow the brain shops
Using implanted electrodes, researchers find individual neurons associated with attaching value to objects.
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HumansHow to hear above the cocktail party din
Simply repeating a sound in different acoustic environments may allow listeners to focus in on it, experiments suggest.
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Health & MedicineThe Killer of Little Shepherds:
A True Crime Story and the Birth of Forensic Science by Douglas Starr.
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HumansBabies may sense others’ worldviews earlier than thought
New study suggests 7-month-olds can recognize that other people's beliefs don't always match reality.
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Health & MedicineGiant rats detect tuberculosis
Animals can be trained to sniff out TB in sputum samples, adding to accuracy of microscope test, a study from Tanzania shows.
By Nathan Seppa -
Health & MedicineChildhood epilepsy that lasts into adulthood triples mortality
The added risk occurs in patients whose seizures persist, a 40-year study in Finland shows.
By Nathan Seppa