Humans
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We summarize the week's scientific breakthroughs every Thursday.
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		Health & MedicineIn babies, turning down inflammation soothes the hurt
Babies don’t feel nerve pain because their immune systems tamp down inflammation.
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		ArchaeologyRing brings ancient Viking, Islamic civilizations closer together
Ancient find fingers ninth century connection between Vikings and Islamic civilization.
By Bruce Bower - 			
			
		AnthropologyPeople moved into rainforests much earlier than thought
People lived year-round in rainforests well before previous estimates, an analysis of teeth excavated in Sri Lanka suggests.
By Bruce Bower - 			
			
		LifeFor healthy eating, timing matters
Limiting eating times improves heart function in fruit flies.
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		Health & MedicineRise in measles cases predicted in Ebola-stricken areas
Disruptions in vaccination campaigns in West Africa during the Ebola outbreak could lead to as many as 16,000 deaths from measles in the coming months.
By Nathan Seppa - 			
			
		LifeChickens to blame for spread of latest deadly bird flu
Chickens are responsible for the second wave of H7N9 bird flu in China.
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		Health & MedicineTeens have higher anaphylaxis risk than younger kids
Adolescents may be more apt to experience an extreme allergic reaction than younger children, researchers report.
By Nathan Seppa - 			
			
		NeuroscienceElectrical zap of cells shapes growing brains
The electric charge across cell membranes directs many aspects of brain development, and changing it can fix certain brain birth defects.
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		LifeExperimental herpes vaccine works in mice
An experimental herpes vaccine works in animal tests by using an approach starkly different from that used in previous vaccine development.
By Nathan Seppa - 			
			
		Health & MedicineArsenic spurs adaptation in Argentinian villagers
The people of San Antonio de los Cobres, Argentina, have genetic adaptations that may help them efficiently get rid of arsenic, a new study shows.
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		Health & MedicineHepatitis E vaccine shows strong coverage
A large trial in China indicates that a vaccine can provide 87 percent protection against the hepatitis E virus, which infects 20 million people a year.
By Nathan Seppa - 			
			
		Health & MedicineReport offers stimulating recommendation on coffee
Results from a committee of experts give the blessing to moderate coffee intake. But as we all raise our mugs, the science behind the report is worth a closer look.