A new study has found a rare genetic mutation that allows some of us to get only a few short hours of sleep and wake up feeling fully rested and wide awake.

Researchers identified a new genetic mutation that may allow some people to survive, even thrive, on three hours of sleep. The mutation is called SIK3-N783Y. Scientists said mice test subjects ...

The Centers for Disease Control and Prevention said Thursday that a single severe case of bird flu detected in a Louisiana man shows a rare mutation of the virus. The patient’s samples showed ...