Health & Medicine
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		LifeYears or decades later, flu exposure still prompts immunity
New forms of influenza viruses can spur production of antibodies to past pandemics in people who lived through them.
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		Health & MedicineClues emerge to explain allergic asthma
Tests in mice reveal that allergens can trigger inflammation by cleaving a clotting protein.
By Nathan Seppa - 			
			
		Health & MedicineGut-brain communication failure may spur overeating
Restoring a depleted molecule in obese mice repaired their abnormal response to food.
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		Health & MedicineRacial homogeneity in early childhood may affect brain
In lab study, kids who lived in single-race orphanages have difficulty interpreting emotions on faces with foreign features.
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		Health & MedicineMediterranean diet may offset genetic risk for stroke
Compared to a low-fat diet, eating fish and olive oil kept blood sugar levels lower in people with a common diabetes risk factor.
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		Health & MedicineCamels implicated as possible hosts of MERS virus
Antibodies to a mysterious pathogen that has sickened 94 people were found in camels in Oman and the Canary Islands.
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		Health & MedicineVaccine protects against malaria in early test
A series of shots enables volunteers to fend off a live infection by the disease-causing parasite.
By Nathan Seppa - 			
			
		Health & MedicineHigh blood glucose levels linked to dementia
Elderly people with elevated blood glucose levels are more apt to develop dementia, whether or not they have diabetes.
By Nathan Seppa - 			
			
		Health & MedicineSpace-mapping neurons found in human brain
Grid cells may orient people in Euclidean space.
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		Health & MedicineGoing out to lunch zaps mental focus
Sharing a midday meal with friends could lead later to errors at work.
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		Health & MedicineFull moon may mean less sleep
Slumber waxes and wanes along with lunar rhythm, researchers find with people sleeping in windowless lab.
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		Health & MedicineGastric bypass surgery causes sugar-burning gut growth in rats
The rapid improvement in symptoms of diabetes, seen in patients before weight loss begins, may be due to changes in part of the intestine.
By Meghan Rosen