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Thirst is what compels us to start hydrating. Now scientists have found a brain circuit in mice that seems to switch off thirst when they've taken in enough fluid and before it gets dangerous.

A mind-controlled robotic arm has pressure sensors in each fingertip that send signals directly to a paralyzed man's brain. It's still experimental, but could eventually help thousands, engineers say.

U.S. employers added 136,000 jobs in September — a sign of continued resilience in the labor market amid growing signals that the economy is losing steam. The jobless rate was the lowest since 1969.

Treasury Secretary Jack Lew has signaled his intention to push for legislation shutting down "corporate inversions," techniques commonly used by companies to dodge the corporate income tax.

Scientists around the world are working on a way to inject vaccines painlessly. The trick is to make the needles so small. they don't interact with the nerve endings that signal pain.

A 73-year-old French woman in confinement in Chamonix recalls her Jewish father, who survived World War II hiding out in a nearby village. Others sent him smoke signals to warn when Nazis were near.

In a deal with the Taliban last year, the Trump administration agreed to withdraw U.S. troops by May, but the Biden administration says the Taliban isn't keeping its end of the bargain.

The campaign emerged on social media last week and urges people to hoist a white flag or cloth to signal they needed immediate help. Food retailers and celebrities alike have responded.

President Biden traveled to NATO's eastern flank as a show of support to allies most unnerved by Russia's invasion of Ukraine.

China says it's neutral when it comes to the Russian invasion of Ukraine. Domestically however, China is signaling it is solidly on Russia's side.