Scientific consensus

248 leading scientists warn of Harmful Health Effects of Blue-Rich LED Light at Night

Retrieved on: 
Monday, October 9, 2023

BOSTON, Oct. 9, 2023 /PRNewswire/ -- Many of the lights sold today are causing major health problems, including obesity, diabetes, and breast cancer. Why? They are blue-enriched LEDs, which play havoc on people's circadian rhythms during the evening hours. On October 10th, Blue Light Awareness Day, the Circadian Light Research Center announces the publication in Frontiers in Photonics of a consensus survey which confirms that human circadian clocks are highly sensitive to blue wavelengths, and insufficient daytime blue-rich light and excessive blue-rich light at night, leads to many health disorders.

Key Points: 
  • BOSTON, Oct. 9, 2023 /PRNewswire/ -- Many of the lights sold today are causing major health problems, including obesity, diabetes, and breast cancer.
  • People should purchase lights for evening and night use that do not contain blue light and use blue-enriched LEDs during daytime only."
  • 248 scientists, with a total of 2,697 peer-reviewed publications on light and circadian clocks since 2008, completed a survey with potential consensus statements.
  • There is now sufficient evidence to support the widespread introduction of circadian lighting that adjusts light intensity and blue content across day and night to maintain robust circadian entrainment and health.

Spring-Forward, Fall-Back Daylight Savings Adverse Effects Worsened by Blue-Enriched LED Lights

Retrieved on: 
Thursday, February 23, 2023

BOSTON, Feb. 23, 2023 /PRNewswire-PRWeb/ -- When the clocks are adjusted forward for Daylight Saving Time on March 12th, over 300 million Americans will rise an hour earlier. While this may sound like a minor event, it is not. Not only will people lose sleep, but their disrupted circadian rhythms will cause many health impacts. Each year, as people try to adjust, heart attacks increase by 17-24%, older patients have 20% more strokes and a 6% rise in fatal traffic accidents. Daylight Savings plays havoc in part due to the increased exposure to indoor lighting. Changing the time people see light affects their circadian rhythm more with the increased usage of blue-enriched LEDs.

Key Points: 
  • Daylight Savings plays havoc in part due to the increased exposure to indoor lighting.
  • Changing the time people see light affects their circadian rhythm more with the increased usage of blue-enriched LEDs.
  • The US Senate voted unanimously in 2022 to leave the clocks on Daylight Savings Time year-round in the "Sunshine Protection Act."
  • Dr. Moore-Ede offers practical ideas to fend off the effects of Daylight Savings.