Humans
We summarize the week's scientific breakthroughs every Thursday.
- Science & Society
Social media can be addictive, a jury finds. Research hints at a link
Instagram and YouTube intentionally designed social media platforms to hook users, a landmark court case found. A pediatrician explains the ruling’s impact.
- Health & Medicine
Start cholesterol tests in childhood, new guidelines say
The idea is to control bad cholesterol early in life. Additional tests are also recommended to provide a clearer picture of risk.
- Animals
When were dogs domesticated? The oldest known dog DNA offers clues
Two new studies suggest that genetically stable dogs were living among humans in Europe by about 14,000 years ago.
- Archaeology
Neandertals made antibacterial ointment, but may not have known it
A team of scientists re-created the way Neandertals made birch tar and found its antibacterial properties could fight off skin infections.
- Health & Medicine
Amid vaccine policy whiplash, here’s how a pediatrician talks to families
A court ruling that blocks Trump administration vaccine policy is a win for science. But much work remains to rebuild trust in vaccines.
- Health & Medicine
GLP-1 microdosers are chasing longevity
Experimenters hope to harness the powerful effects of medications such as Ozempic and Wegovy at doses smaller than those studied most.
- Archaeology
A new study questions when people first reached South America
Data suggest people lived at Chile’s Monte Verde site thousands of years later than thought, challenging key “pre-Clovis” evidence. Not all agree.
- Health & Medicine
Are pig organs the future of transplantation?
Each year, thousands of people in the U.S. die waiting for donated organs. A new book shares how organs from other species could change that.
- Health & Medicine
Smartwatch data can be used to assess early diabetes risk
When combined with clinical markers, smartwatch data was able to help detect insulin resistance with nearly 90 percent accuracy.
- Climate
Extreme heat is cutting the time people can safely be active outdoors
Heat and humidity now severely limit light physical activity for millions of people around the world, with older adults facing the greatest burden.
- Neuroscience
Yaks may hint at a way to treat brain diseases like MS
A genetic mutation tied to keeping the brain healthy at high altitudes may point to a way to repair nerve damage, experiments in mice show.
- Health & Medicine
A newfound blood biomarker may one day predict longevity
Levels of six RNA molecules in the blood ID’d older adults likely to survive two more years. Whether it will work for other people is a big question.
