Why Your Smartphone Screen Looks Brighter at Night: The Science of Circadian Rhythms and Blue Light
Smartphones have become an integral part of our daily lives, serving countless purposes from communication to entertainment. As we spend increasing hours on these devices, particularly at night, many users notice that screens appear to be brighter during evening hours. This phenomenon isn't simply about light levels; it involves complex interactions between light and our body's internal clock, the circadian rhythm. Understanding this interaction is vital as it impacts sleep quality and overall health.