Humans
We summarize the week's scientific breakthroughs every Thursday.
- Anthropology
Drought may have doomed the ‘hobbits’ of Flores
Stalagmite data suggest Homo floresiensis faced prolonged drought that stressed both them and their prey, contributing to their disappearance.
- Health & Medicine
A CDC panel has struck down universal newborn hepatitis B vaccination
A reshaped vaccine committee voted to scale back newborn hepatitis B shots despite decades of data showing the birth dose is safe, effective and vital.
- Anthropology
Big Neandertal noses weren’t made for cold
Tiny cameras threaded inside a Neandertal skull provide evidence that their big noses were not an adaptation to cold climates.
- Health & Medicine
How a bacterial toxin linked to colon cancer messes with DNA
A closeup look at colibactin’s structure reveals chemical motifs that guide its mutation-wreaking “warheads” to specific stretches of DNA.
- Psychology
Chatbots spewing facts, and falsehoods, can sway voters
Chatbots that dole out fact-laden arguments can sway voters. Those facts don’t have to be true.
- Humans
Ancient southern Africans took genetic evolution in a new direction
An ancient, shared set of human-specific genes underwent changes in a geographically isolated population after around 300,000 years ago, scientists say.
- Health & Medicine
Self-hypnosis with cooling mental imagery could ease hot flashes
Postmenopausal women who listened to self-guided hypnosis recordings daily for six weeks saw meaningful improvements in hot flash symptoms.
- Health & Medicine
Personalized ‘prehabilitation’ helps the body brace for major surgery
A small study finds that individualized prehab can dampen harmful immune responses and may reduce complications after an operation.
- Humans
A therapeutic HPV vaccine shrank cervical tumors in mice
An HPV vaccine delivered into the nose can treat cervical tumors in mice. The vaccine targets a cancer protein produced by the virus.
- Health & Medicine
Canada just lost its measles elimination status. Is the U.S. next?
Canada has had more than a year of continuous measles transmission. The United States has until January to limit cases before losing status.
- Anthropology
A foot fossil suggests a second early human relative lived alongside Lucy
Foot bones and other fossils have been attributed to Australopithecus deyiremeda, a recently discovered species that may shake up the human family tree.
- Science & Society
Gratitude can increase joy, even if it feels a little cringe
Like exercise, gratitude takes many forms. Finding the right practice, research shows, is up to the individual.
