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LEDs Have Damaging Health Effects, French Assessment Says

Analysis by Dr. Joseph Mercola Fact Checked

Story at-a-glance -

  • Energy-saving light-emitting diode (LED) lights typically emit blue light that can generate high amounts of oxidative stress that contributes to visual deterioration if viewed at the wrong time of the day
  • Excessive blue light, especially at night, can prevent the priming of your retinal cells for repair and regeneration, thereby raising your risk of vision problems, including age-related macular degeneration (AMD), a leading cause of blindness
  • The risks of LEDs to your vision in particular are highlighted in a 282-page report issued in 2010 by the French Agency for Food, Environmental and Occupational Health and Safety (ANSES), which recommends limiting exposure to LEDs and avoiding LED screens before bedtime
  • ANSES also recommends limiting household use to “warm white” LEDs and calls for reducing the luminosity of car headlights
  • Children are at high risk for damage from LEDs due to the transparency of the lenses in their eyes

While this article focuses on light-emitting diode (LED) lights please understand that compact fluorescent light bulbs (CFLs) are far worse. Not only do they have the same digital light problems as LEDs but they also have mercury in them and cause dirty electricity in the 62 KHz range. If you have any fluorescent bulbs in your home you would be strongly advised to carefully replace them because if you break the bulb there are certain precautions you need to take to clean it up.

In fact, the U.S. Environmental Protection Agency has special rules for cleaning up broken CFLs, which include opening windows, airing out the room and shutting off the heat or air conditioning for several hours, so as not to disturb the leaked mercury. You also are to call your local government about proper disposal of the fragments — and when in doubt to call a poison control center.


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