Medical research

Moving cells with light holds medical promise

Scientists at Washington University School of Medicine in St. Louis have shown they can coax cells to move toward a beam of light. The feat is a first step toward manipulating cells to control insulin secretion or heart rate ...

Neuroscience

'Star Wars-style' holograms to communicate with the brain

About 20 years ago, neuroscientists, recording from electrodes implanted in the medial temporal lobe, identified human brain cells that respond only to photos of Jennifer Aniston. It was a headline-grabbing development in ...

Health

Lasers in toys can cause serious eye damage, FDA warns

(HealthDay)—Lasers in toys can be dangerous to children and those around them, posing the risk of serious eye injuries and even blindness, according to the U.S. Food and Drug Administration.