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It's a technique widely used in other countries to slow the spread of infection. Here's how contact tracing works — and how it can help the U.S. start to get back to normal.

A reader is taken aback by her best friend's reaction to the possibility that she might want kids. He says that if she had kids, it would change everything between them. Friendship experts weigh in.

Brett is the health reporter and a producer at WXXI News. He has a master’s degree from the City University of New York Graduate School of Journalism and before landing at WXXI, he was an intern at WNYC and with Ian Urbina of the New York Times. He also produced freelance reporting work focused on health and science in New York City. Brett grew up in Bremerton, Washington, and holds a bachelor’s degree from Willamette University in Salem, Oregon.

Yoram Bauman is an economist. And a stand-up comic. Who makes jokes about climate change and global development, among other topics. At the Inter-American Development Bank this week, he killed!

Treadmill desks were the hot new trend in exercising a few years ago. The idea was to get moving and lose weight at work. But a new study suggests people don't use them enough to make a difference.

Talks about the country's nuclear program are set to begin in Geneva. Iran says it is making nuclear fuel for power plants, but some observers are suspicious of the country's motives.

Lesson No. 1: Have "proper precautions in place," says historian Richard Evans. And don't "try to hush it up." Thousands died in Hamburg after the government failed to acknowledge a cholera outbreak.

Are social networks driving us into partisan factions at the expense of the common good? We look at social media and democracy.

China is battling coronavirus outbreaks in six cities. More than 20 million people are in some form of lockdown.

As he prepares for a conference on implementing clean energy to combat climate change, energy secretary Ernest Moniz says he's confident the Obama administration's commitments will remain in place.