Blue Light Blocking

Blue Light Blocking

Blue-Blocking Glasses: Do you need them?

You dim your bedroom lights. You use night mode on your phone. But blue light is still wrecking your melatonin production. Blue wavelengths (450-480 nm) suppress melatonin secretion more powerfully than any other spectrum. Even small amounts after sunset delay your circadian phase, reduce sleep quality, and impair next-day cognitive