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Blue Light is fast becoming a critical health concern.  Blue Light exposure is increasing with the adoption of CFLs as the primary source of lighting in office buildings and now in our homes.  Maybe it’s time to look at the overall health threat posed to us by Blue Light.

Below are 6 good reasons to rethink your exposure to Blue Light.


A study released by Harvard University highlights a possible connection between Blue Light and Diabetes.  The Harvard researchers asked test participants to gradually shift the timing of their circadian rhythms, changing their sleep schedules.  The Harvard team found that this shift caused blood sugar levels to increase, putting test subjects into a pre-diabetic state.  At the same time, the levels of leptin, a hormone that gives the sensation of fullness after eating, went down, leading to the theory that exposure to Blue Light may play a key role in Diabetes and even maintaining a healthy weight


Exposure to Blue Light may have a direct effect on not only the growth of tumoral diseases like Breast Cancer, but also an effect on how cancers are treated and the eventual outcome for cancer patients.  It turns out that Melatonin helps suppress cancer growth.  And if Melatonin is suppressed by Blue Light, it can be harder for the body to fight the cancer.Avoiding Blue Light and increasing Melatonin has been shown to have a positive effect on Breast Cancer outcome.

Toxic Stress To Your Retina

A recent report by the French Agency For Food, Environment And Occupational Health & Safety (ANSES) identifies ocular health risk as one of the top dangers of Blue Light.  The risk of “toxic stress” to the retina, according to ANSES, caused by Blue Light, is directly related to the “accumulated dose of blue light to which the person has been exposed, which is generally the result of low-intensity exposure repeated over long periods.”  The report underlines that these dangers are of particular risk for children, those who are already light-sensitive and workers who are routinely exposed to Blue Light.


Blue Light suppresses the production of Melatonin, a hormone necessary for restful sleep.  The same Harvard study that linked Diabetes to Blue Light also made a connection between Blue Light and insomnia.  Dr. Stephen Lockley, a Harvard sleep researcher, contends that even light from electronic devices, during night hours can inhibit the production of Melatonin and have an effect of sleep patterns.


Lupus patients are generally known to be sun-sensitive, but many react with the same disease spike when exposed to fluorescent (CFL) light as well.  Patients typically experience increased symptoms that may or may not recede when the Blue Light is removed.  Lupus patients and those with other sun-sensitive diseases should avoid prolonged exposure to Blue Light.

Migraine Headaches in Children

Dr. Andrew Hershey, professor of pediatrics and neurology and director of the headache center at Cincinnati Children’s Hospital Medical Center, has written extensively about the possibility that migraines may be caused and worsened by the Blue Light from CFLs used to light our schools.  He estimates that up to 28% of children and 10% of teenagers suffer from migraines.

Sebrina Smith

Sebrina Zerkus Smith is a Southern Gal that has been scratching the writer’s itch for nearly 30 years. Her career began in Washington, D.C., in 1987, fresh out of collage and full of ideals. While plying her trade by day on congressional reps and senators, at night she burned the candle writing features for local newspapers and national magazines. She quickly realized that her southern upbringing gave her a unique and humorous voice that resonated with her readers. Eventually, she moved to Los Angeles where she pursued her dream of becoming a novelist and screenwriter. She paid her bills by working as a freelance writer for major marketing projects from studios such as CBS, NBC and Disney. Realizing that the future of writing lay with the internet, she was bitten by the blogging bug back in the 90’s, back before it was even called “blogging.” Then it was still just writing and trying to make a living. Through those early blogging years, Sebrina found passion and purpose. Over the past 10 years she has written articles for clients such as LightCues.com, MatterMore.com, Greenopolis, MacAddict, Yahoo, CNN and more. Today, Sebrina writes about a variety of topics including the Southern Experience, sustainability, clean water, food, gardening, sleep and her obsession with pugs. She is a regular paid contributor to WildOats.com as well as other entities. She now lives in Houston with her husband Jeff and their pug Newton. She hopes one day to complete her opus, Living Is Easy With Eyes Closed.

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