The blue lights on top of traffic signals, also known as confirmation lights, are designed to assist law enforcement detect ...

This is why blue strobes are used on snow plows since the blue light is seen easier through heavy snow fall," commented another. "Here in Texas, technically, only white or amber lights are okay ...

The steady red and blue lights are meant to increase awareness that law enforcement is there, and unlike flashing emergency ...

This means the same bedroom lighting has dramatically different effects on a 20-year-old versus a 60-year-old, with older adults often experiencing less sensitivity to moderate blue light exposure.

This high-energy light radiates from our smartphones, computer screens, tablets, LED lighting, and even the sun—which remains by far our most significant source of blue light exposure ...

Blue light — from the sun, fluorescent lights, or your phone and other screens — sends signals to your brain to wake up. Learn how it can interfere with sleep.