You know that feeling when you're working late and your computer screen starts glaring at you like it's trying to blind you into submission? The bright, cool light that looks crisp in the afternoon ...

After examining 13 million hours of light exposure data, researchers found that experiencing bright light during the dark ...

Other than when you've enabled the AssistiveTouch feature on your iPad or iPhone, there shouldn't be a bright spot on your iPad or iPhone screen — one that stays in its place, no matter how much you ...

As daylight diminishes people can feel their mood dimming. Experts say starting light therapy in the fall can help fend off winter depression. As the days get shorter, many people may also find their ...