Humans
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We summarize the week's scientific breakthroughs every Thursday.
- Psychology
Chess players rely on familiar moves even when the game changes
In chess as in life, people use memory as a shortcut for decision-making. That strategy can backfire when the present doesn’t resemblance the past.
By Sujata Gupta - Health & Medicine
Ozempic and Wegovy ingredient may reverse signs of liver disease
The diabetes and weight loss drug semaglutide reversed liver scarring and inflammation. It’s among several drugs in the works for the condition MASH.
By Meghan Rosen - Archaeology
A Pueblo tribe recruited scientists to reclaim its ancient American history
DNA supports modern Picuris Pueblo accounts of ancestry going back more than 1,000 years to Chaco Canyon society.
By Bruce Bower - Health & Medicine
Two cities stopped adding fluoride to water. Science reveals what happened
As calls to end fluoride in water get louder, changes to the dental health of children in Calgary, Canada, and Juneau, Alaska, may provide a cautionary tale.
By Alex Viveros - Health & Medicine
Bird flu in cows shows no signs of adapting to humans — yet
Easy replication in cattle mammary glands means H5N1 bird flu is under no evolutionary pressure to adapt to spread easily in humans.
- Anthropology
A lion’s bite marks a fatal fight with a possible Roman-era gladiator
The first skeletal evidence of a gladiator show or execution involving an exotic animal comes from a Roman British man with bite marks from a lion.
By Bruce Bower - Psychology
Uncertainty is on the rise. Here’s how people can cope
Societal upheaval can trigger uncertainty, which makes people susceptible to cognitive traps. Experts suggest some simple tools can help.
By Sujata Gupta - Psychology
Loneliness is higher among middle-aged Americans than older ones
Across much of the world, loneliness increases from middle age to later years. That trend is reversed in the United States, a new study shows.
By Sujata Gupta - Health & Medicine
Autism rates rose again. Experts explain why
Autism rates are higher than ever before, probably because of more expansive and sensitive diagnoses. Those numbers highlight the need for more support for people with autism.
By Tina Hesman Saey and Laura Sanders - Humans
Ancient horse hunts challenge ideas of ‘modern’ human behavior
An archaeological site in Germany suggests communal hunting and complex thinking emerged earlier in human evolution than once thought.
By Bruce Bower - Health & Medicine
Clinical trials face uncertain futures amid Trump cuts
The Trump administration has reportedly disrupted over 100 clinical trials. Science News spoke to researchers about the impacts on four of them.
- Health & Medicine
A messed-up body clock could be a bigger problem than lack of sleep
For a good night of sleep, consider getting your circadian rhythm back in sync with the sun. Here’s how to do it.
By Sujata Gupta