Health & Medicine
How a brutal drought may have helped unleash yellow fever in Brazil
Animals searching for water brought the forest to the city, perhaps sparking Brazil’s first yellow fever outbreak in decades.
Humans
We summarize the week's scientific breakthroughs every Thursday.
More Stories in Humans
- Health & Medicine
Estrogen therapy is linked to fewer signs of Alzheimer’s in the brain
Estrogen-only menopause therapy in older women was linked to less Alzheimer’s brain pathology at autopsy but may not prevent the disease.
- Health & Medicine
Newborn screening for cancer risk could save lives. Should it be done?
Genetic screening that identifies cancer-linked mutations in newborns could give doctors a head start on treatment, but it comes with risks.
- Archaeology
Ancient Greek rings may have been forged with iron from meteorites
Chemical analysis of Bronze Age iron objects indicate that Greek nobles may have indulged in signet rings made with precious metal from the sky.
- Artificial Intelligence
AI may respond differently to bosses and subordinates
In simulated conversations, social hierarchy can sway AI agents, making lower-status systems more likely to follow harmful requests.
- Health & Medicine
Here’s what the first mRNA flu vaccine could mean for flu season
Compared with standard flu shots, Moderna’s mFlusiva generates stronger, longer-lasting immunity and is more effective at preventing infection, data show.
- Anthropology
Sugar may have been a key ingredient in human evolution
A sweet tooth for sugars from fruits and honey may have helped fuel brain growth in our primate cousins and early human ancestors, a new study suggests.
- Health & Medicine
Bullfrogs may have an antidote to deadly shellfish poisoning
Researchers injected mice with a protein derived from frogs to save them from the same kind of shellfish poisoning that affects people.
- Artificial Intelligence
Is AI making us dumber? Maybe not. But our skills are at risk
Studies suggest AI can weaken learning when it replaces effort, but tools that guide rather than answer may help people keep their skills.
- Health & Medicine
To detect CTE while alive, a test for another brain disease may help
A protein that is a hallmark of Alzheimer’s disease may also ID a brain condition associated with head trauma in contact sports, early findings suggest.
