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Leaders from tech giants like Google and PayPal say that the password as we know it is dead. So what's the future of authentication online? Apple is implementing fingerprint protection on iPhones, but questions linger about the security and feasibility of biometrics.

Pakistan's President Gen. Pervez Musharraf says parliamentary elections will be held by mid-February, a signal that the state of emergency rule he declared could soon end.

When Microsoft introduced Windows 8 last year, the software giant billed the new operating system as one of the most critical releases in its history. The system would bridge the gap between personal computers and the fast-growing mobile world of tablets and smartphones. But this week, the company sent signals that it might soon alter Windows 8 to address some early criticism.

Dr. Vivek Murthy tells NPR: "The reality is that loneliness is a natural signal that our body gives us, similar to hunger, thirst. And that's how important human connection is."

An obscure bit of brain tissue appears critical to both out-of-body experiences and our sense of being anchored to a physical self.

A new study finds that too little sleep boosts a signal in the body that may drive a stronger desire to eat. It's the latest evidence linking sleep deprivation to overeating and increased body weight.

Scientists have recreated a pathway that senses pain, using clusters of human nerve cells grown in a dish.

Since his first term, President Trump has wanted to be able to fire federal employees for any reason. A new rule vastly expands his authority to do that.

In the 80% of Ukraine that remains in Kyiv's hands, two years of full-scale war with Russia have brought grief, destruction and, despite all, optimism.

Union dockworkers at ports across the U.S. began walking picket lines early Tuesday, snarling the movement of billions of dollars' worth of goods.