Humans
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We summarize the week's scientific breakthroughs every Thursday.
- Anthropology
People 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 - Life
For healthy eating, timing matters
Limiting eating times improves heart function in fruit flies.
- Health & Medicine
Rise 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 - Life
Chickens to blame for spread of latest deadly bird flu
Chickens are responsible for the second wave of H7N9 bird flu in China.
- Health & Medicine
Teens 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 - Neuroscience
Electrical 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.
- Life
Experimental 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 & Medicine
Arsenic 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.
- Health & Medicine
Hepatitis 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 & Medicine
Report 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.
- Health & Medicine
Dose of extra oxygen revs up cancer-fighting immune cells
Extra oxygen helps immune cells shrink tumors in cancer-ridden mice.
- Humans
Ancient jaw may hold clues to origins of human genus
A 2.8-million-year-old fossil from Ethiopia raises questions about the origins and evolution of the human genus, Homo.
By Bruce Bower