The Dangers of Birth in Tanzania

East Africa’s largest country has made great strides in reducing its maternal death rate, but many obstacles remain.

The World Hates Fat People

Being overweight is stigmatized in most countries around the world. But does obsessive talk about excess fat lead to weight reduction—or to cruel, useless shaming?

Zika at the Rio Games: Pandemic or Panic?

Concerns about the Zika virus are fueled more by fear than by medical science.

On Instagram, a Journey From Bear to Bile

Instagram user accounts reveal how bears are honored as part of nature—or turned into cold hard cash.

Beyond the Vaccination Rift

How does the human drive for social belonging affect parents’ vaccination decisions?

To Tell or Not to Tell

The lives of two South African sisters infected with HIV reveal the difficulties international aid organizations have grasping subtle cultural differences.