How Blue Light Affects Your Sleep Cycle: What You Need to Know to Sleep Better Tonight
Have you ever scrolled through your phone late at night only to toss and turn for hours trying to fall asleep? You’re not alone—and blue light is likely to blame. In our always-on, screen-filled world, sleep disturbances are on the rise. One of the most overlooked culprits? Blue light exposure from digital devices . From smartphones and laptops to LED lights and TVs, we're bombarded with this artificial wavelength long after the sun sets—and it’s taking a serious toll on our sleep health. In this in-depth guide, we’ll explore exactly how blue light affects your sleep cycle , what science says about its impact on your circadian rhythm, and actionable steps you can take today to protect your sleep—and your health. What Is Blue Light? Blue light is a high-energy, short-wavelength light (between 415–455 nanometers) that is naturally present in sunlight. It plays an essential role during the day—helping to regulate your circadian rhythm, increase alertness, and boost mood. However...