Health
Males Are the Taller Sex. Estrogen, Not Fights for Mates, May Be Why.
To explain why men are on average taller than women, scientists theorized about competition for mates. But the effects of estrogen on bone growth may be answer enough.
The Health Clinic Crisis on Main Street
Community health centers, a lifeline for Americans, are in critical condition.
Sugary Camouflage on Coronavirus Offers Vaccine Clues
In the fight against viruses and other pathogens, scientists are looking beyond genes and proteins to the complex sugars, or glycans, on cell surfaces.
Can a Battery of New COVID Tests Stem the US Debacle?
Medical testing has been a Pearl Harbor. But the war could be won.
Pursuing COVID-19 at Internet Speed
As scientists grapple with the global pandemic, preprint servers let information be free—and fast
