Humans
We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
Daylight savings time tied to more exercise in children
Kids in Europe and Australia are slightly more active in longer-lit evenings, a new study shows.
- Archaeology
Ice Age hunter-gatherers lived at extreme altitudes
Two archaeological sites in the Andes indicate that hunter-gatherers inhabited extreme altitudes earlier than previously thought.
- Health & Medicine
Cocoa antioxidants boost the aging brain
High doses of cocoa flavanols can improve some types of brain function in older individuals, a new study shows.
- Genetics
Men who lose Y chromosome have high risk of cancer
Losing the Y chromosome in blood cells may bring on cancer and shorten men’s lives.
- Genetics
Easter Islanders sailed to Americas, DNA suggests
Genetic ties among present-day populations point to sea crossings centuries before European contact with Easter Island.
- Humans
Oldest human DNA narrows time of Neandertal hookups
A 45,000-year-old Siberian bone provides genetic clues about the timing of interbreeding between ancient humans and Neandertals.
- Health & Medicine
There’s no need to panic about enterovirus
The enterovirus behind this year’s outbreak, EV-D68, has been around for decades and generally causes mild symptoms.
- Humans
Anglo-Saxons left language, but maybe not genes to modern Britons
Modern Britons may be more closely related to Britain’s indigenous people than they are to the Anglo-Saxons, a new genetic analysis finds.
- Psychology
Majority doesn’t always rule in teen booze use
Having one abstainer as a friend cuts teens’ odds of getting drunk and binge drinking, a study finds.
- Health & Medicine
Tiny human intestine grown inside mouse
Human gut tissue transplanted into a mouse can grow into a working intestine that doctors could use to test disease treatments.
- Health & Medicine
Feedback
Readers discuss methods to prevent sepsis and whether genes are thrifty, while Tina Saey clears up some confusion regarding Ebola's airborne status.
- Microbes
Microbes can redeem themselves to fight disease
With some genetic engineering, bacteria can morph from bad to good and help attack invading cancer cells.
