Articles by

Tina Hesman Saey

HIV and illicit drugs are a bad mix. This scientist found an unexpected reason why

It was as a Ph.D. student that Dionna Williams realized the fundamental flaws in how medical science...

New COVID-19 booster shots have been approved. When should you get one?

Meghan Rosen is a staff writer who reports on the life sciences for Science News. She...

Why mpox is a global health emergency — again

For the second time, the World Health Organization has declared that mpox, formerly called monkeypox, is a...

Getting drugs into the brain is hard. Maybe a parasite can do the job

A mind-bending parasite may one day deliver drugs to the brain. Toxoplasma gondii is a single-celled parasite...

How to stay healthy during the COVID-19 summertime surge

A summer wave of COVID-19 is rising. “There’s clearly a bump,” says William Schaffner, an infectious diseases...

Freeze-drying turned a woolly mammoth’s DNA into 3-D ‘chromoglass’

Beef jerky and some woolly mammoths have at least one thing in common: Drying turns their DNA...

Ancient Egyptian scribes’ work left its mark on their skeletons

Ancient Egyptian scribes’ life works are written on their bones. Arthritis and other damage mark the scribes’...

Long COVID finally gets a universal definition

A sweeping new definition of long COVID could help affected people get recognition of their condition and...