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Researchers say most brain scan studies are too small to explain complex human traits like intelligence or mental health. Meaningful insights will require studies of thousands of brains, not dozens.

NPR's Mary Louise Kelly talks with Dr. Wilbur Lam, a lead investigator assessing COVID-19 diagnostic tests for the U.S. government, about detecting the omicron BA.2 subvariant with rapid tests.

California, Arizona and Nevada are facing big cuts in water from the Colorado river. Water managers' responses to the federal government's restrictions are now in.

Secretary of Defense Lloyd Austin said the U.S. wants to see the Russian military weakened on the battlefield. Meanwhile, Russian missiles struck railway infrastructure in central and western Ukraine.

Beijing says it will test all 3.6 million residents in its largest district after finding about four dozen COVID cases. Residents fear a city-wide lockdown is imminent.

In Alaska, a seventh grader has won the Yup'ik spelling bee and a fifth grader has won the Iñupiat spelling bee.

Voting Rights groups are suing Florida over congressional maps that eliminate two Black voting districts. Even if successful, it's uncertain whether new maps will be imposed before the election.

Athens, Ga. is often regarded as one of the best college towns in America, but around 30% of residents live below the poverty line. Mariah Parker—aka Linqua Franqa—is looking to bridge that divide.

The Brazilian singer Flora Purim helped create the sound of jazz fusion. Now, as she releases what she says will be her final album, it's time to give her artistic legacy its due.

In his new book Pizza Quest, Peter Reinhart describes his spiritual obsession with what he calls "the ultimate comfort food."