Blinded by Brighter Headlights? It’s Not Your Imagination.

The rising use of light-emitting diodes and the popularity of pickups and S.U.V.s have prompted complaints about the glare and intensity of headlights.

Scientists Drove Mice to Bond by Zapping Their Brains With Light

The study, a tour de force in bioengineering, comes after two decades of research on brain-to-brain synchrony in people.