![]() ![]() Blue light also suppresses melatonin, the hormone that tells us to go to sleep. ![]() It keeps us alert and wide-awake, shifting our natural circadian rhythm, which regulates our internal 24-hour body clock. That blue light, however, can have a lot of negative effects on our health – especially in the evening. ![]() Here’s why: The Problemīlue light is short-wavelength light, and we’re constantly exposed to it, from computer screens all day in the office to catching up on the news on our phones in bed. Should you turn on that built-in blue light filter?Īs it turns out, the blue light filter that turns your iPhone screen an orange hue isn’t actually helping all that much with your ability to fall asleep at night. ![]() It binds us, surrounds us, and keeps us awake at night because we can’t stop staring at our smartphones and tablets. ![]()
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