Is your phone giving you the blues? If it isn’t an HONOR, the answer may well be yes. Many of the LED displays in modern smartphones emit a lot of blue light, and there’s growing evidence that that blue light is messing with our sleep and perhaps even our health.
When we talk about blue light we don’t mean blue light like the lights on a police car. What we see as white light actually encompasses a wide range of what are called colour temperatures, and they range from the cooler, more blue white you’ll see in many LED bulbs and in car headlamps to the warmer, more yellow light that makes you feel cosy in the evening. Many smartphones, tablets and other digital devices emit light from the cooler, more blue end of the colour spectrum – and that can be a problem if we get too much of it at the wrong time of day.
