Blue light is a high-energy light that the eyes absorb from computers, smartphones, LED lights, and fluorescent lights. The sun is the biggest source of blue light. On a sunny day, it's 100,000 times ...

The average person in the US spends 4 hours, 37 minutes per day looking at their phone, according to a December 2023 study.

Rates of nearsightedness, or myopia, are skyrocketing in kids—and scientists say it has to do with how little time they’re spending outdoors. Here’s why it’s so good for your vision. Research suggests ...