Benedict Carey

A new study of a 24-year-old man who broke his neck five years ago is the first account of limb reanimation in a human with profound paralysis.

Scientists reported on Wednesday that they had taken a significant step toward understanding the cause of schizophrenia, in a landmark study that provides the first rigorously tested insight into the biology behind any common psychiatric disorder.

Advocates for the mentally ill call the most comprehensive effort in years to overhaul the "broken" U.S. mental health care system ambitious but complicated. And it's already stirred long-standing divisions in mental health circles.

Curing insomnia in people with depression could double their chance of a full recovery, scientists are reporting. The findings, based on an insomnia treatment that uses talk therapy rather than drugs, are the first to emerge from a series of closely watched studies of sleep and depression to be released in the coming