What is long COVID and who’s at risk? This NIH project may find out

You may have heard the big long COVID news that came out recently: A Scottish study reported that about half of people infected with SARS-CoV-2 have not fully recovered six…

A study questioning colonoscopy screening’s benefits has big caveats

A recent study reported a smaller-than-expected benefit from screening colonoscopies. But the study has important caveats, gastroenterologists say, making it ripe for misinterpretation if that context isn’t included. The study…

Black Death immunity came at a cost to modern-day health

A genetic variant that appears to have boosted medieval Europeans’ ability to survive the Black Death centuries ago may contribute — albeit in a small way — to an inflammatory…

Ancient DNA unveils Siberian Neandertals’ small-scale social lives

DNA from a group of Neandertals who lived together and a couple of others who lived not far away has yielded the best genetic peek to date into the social…

Black Death immunity came at a cost to modern-day health

A genetic variant that appears to have boosted medieval Europeans’ ability to survive the Black Death centuries ago may contribute — albeit in a small way — to an inflammatory…

The pandemic shows us how crises derail young adults’ lives for decades

Ninna Ragasa was 24 years old when doctors discovered a mass on the left hemisphere of her brain. Further imaging revealed that Ragasa had an arteriovenous malformation, a tangle of…

A swarm of sneaky omicron variants could cause a COVID-19 surge this fall

Fall and winter have not been kind to us over the last couple of years. In 2020, cases of COVID-19 began to climb in October. And at this time last…

Drone photos reveal an early Mesopotamian city made of marsh islands

A ground-penetrating eye in the sky has helped to rehydrate an ancient southern Mesopotamian city, tagging it as what amounted to a Venice of the Fertile Crescent. Identifying the watery…

Cooperative sperm outrun loners in the mating race

Even sperm gotta stick together. Bull sperm swim more effectively when in clusters, a new study shows, potentially offering insight into fertility in humans. In simulated reproductive tracts of animals…

Here’s where jazz gets its swing

It don’t mean a thing if it ain’t got that swing — all you’ve got to do is stagger your timing. For decades, fans of jazz music have debated why…