Blue Light and Sleepless Nights

     Do you ever find yourself scrolling on your phone before bed and then wondering why you can't fall asleep? Our electronics are pumping out blue light. Blue light is a high energy, short wavelength light. It can be good for you by keeping you alert during the day but too much of it, especially at night, can really mess with your body. Blue light comes from the sun, but it also comes from screens and LED lights. 

    During the day, blue light tells your brain that it's still daytime, so it prevents melatonin in your body. So, as you stay up late on your phone, this blue light is holding back your body's ability to produce melatonin which is making it harder for your body to fall asleep when it's time to do so. Our eyes have intrinsically photosensitive retinal ganglion cells (ipRGCs) that detect light. These cells then send signals to your brain and tell your brain that it's daytime. 

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