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We look at the remarkable findings from a new study of Kenya's M-PESA system, out in 'Science.'

Commerce Secretary Wilbur Ross, who oversees the census, pressured his staff about getting a citizenship question onto the 2020 census months before the Justice Department requested one, emails show.

More than a third of patients with cancer of the esophagus responded to experimental treatment in China with the gene-editing technique CRISPR. Several CRISPR studies are underway there.

A federal program meant to encourage young teachers has, instead, saddled thousands of them with unexpected debts. "I was in shock," says Mikayla Rhone, a teacher in Nebraska.

Dehydration has long been known to slow physical performance. Now there's evidence that too little water can hurt cognitive performance, too, making complex thinking tasks harder.

Dehydration has long been known to slow physical performance. Now there's evidence that too little water can hurt cognitive performance, too, making complex thinking tasks harder.

Kim Stanley Robinson envisions a future that's closer than we like to think in New York 2140. Sea levels 50 feet higher have swamped Manhattan, but there's a tiny thread of hope that we might float.

Gregg Gonsalves dropped out of college, drifted around, became a health-care activist and epidemiology professor — and is now the recipient of a 'genius grant.'

Sexual assault is still a highly stigmatized form of trauma, and that can complicate recovery for years, psychologists find. PTSD, depression and anxiety aren't unusual, but treatment can help.

The University of Vermont's Larner College of Medicine is planning to phase out lectures by 2019. The dean behind the effort says lectures aren't good at engaging learners.