By SETH BORENSTEIN, AP Science Writer Seth Borenstein, Ap Science Writer Wed Jan 5, 7:28 pm ET WASHINGTON – David Nichols studies the way psychedelic drugs act in the brains of rats. But he's haunted by how humans hijack his work to make street dr… more »

Everything in focus (Image: John Brackenbury/NHPA) NewScientist  by Jeff Hecht DITCH those bifocals. You might soon wearing spectacles whose lenses allow you to see clearly regardless of how long or short-sighted you are. With age, the lenses in our… more »

(CNN) -- South African Dr. Sonnet Ehlers was on call one night four decades ago when a devastated rape victim walked in. Her eyes were lifeless; she was like a breathing corpse. "She looked at me and said, 'If only had teeth down there,'" recalled Ehle… more »