Studies show that using screens shortly before bedtime can make it harder to fall asleep, largely because of the blue light. Children, who tend to have more sleep needs, are even more at risk.

Sleep scientists are changing how they think about screen use at night. By Caroline Hopkins Legaspi Experts have long warned about the dangers of blue light before bed. When exposed via smartphones, ...

Color-changing light-emitting fibers woven into fabric enable flexible, pixel-level displays for smart textiles, opening new possibilities for wearable communication. (Nanowerk Spotlight) Imagine a ...