OCT 23, 2017 07:46 AM PDT

Why Blue Light is Bad for Your Health


Almost everywhere you look there are sources of blue light. In cell phones, tablets and computers, blue light is emitted. Blue light is on the higher intensity end of the EM spectrum of light. The white light from the sun is a spectrum of light that blends with blue light included. The problem with cell phones and other devices is that the light they emit has much more highly concentrated blue waves than sunlight. Blue light doesn't get absorbed by the cornea of the eye; it actually passes through to the retina causing cell damage over time. When cell phones or other devices are used late at night, sleep disruption and other health problems can result.

Blue light is how our brains know that it's day or night. When it's night, there is no blue light from the sun, and our bodies produce melatonin which regulates sleep and our circadian rhythm. In addition to possible eye damage, using cell phones and other screen devices at night disrupts the healthy balance of melatonin and interferes with sleep. Sleep deprivation, over an extended period, has been linked to heart disease, diabetes and even some forms of cancer.
About the Author
  • I'm a writer living in the Boston area. My interests include cancer research, cardiology and neuroscience. I want to be part of using the Internet and social media to educate professionals and patients in a collaborative environment.
You May Also Like
NOV 10, 2018
Videos
NOV 10, 2018
Engineering Viable Offspring From Same-sex Mouse Parents
Using a special kind of stem cell and genetic engineering, researchers have learned more about what's possible in reproduction....
NOV 21, 2018
Videos
NOV 21, 2018
Human Urine as Fertilizer?
Although at first it may sound unappealing, human urine could be a key asset in sustainable agriculture research particularly for its unique contribution....
NOV 26, 2018
Space & Astronomy
NOV 26, 2018
Here's What An ISS Resupply Launch Looks Like From Space
Filmed rocket launches have become the norm here on Earth, but most cameras are situated at ground level, either shooting the takeoff from the launchpad or...
DEC 05, 2018
Cancer
DEC 05, 2018
Zika virus as a weapon against brain cancer
Glioblastoma is the most aggressive type of Brain Cancer with an average survival rate of less than two years with treatment. So what if there could be a cure for this type of cancer....
DEC 05, 2018
Videos
DEC 05, 2018
Male Contraceptive Gel is in Clinical Trials
Researchers have started a clinical trial involving 420 participants to test the efficacy of a male contraceptive gel....
DEC 08, 2018
Cardiology
DEC 08, 2018
Adaptations Of The Heart To Chronic Exercise
We have all heard that exercise is good for us, particularly for the heart, but many don’t understand precisely how regular, long-term activity affec...
Loading Comments...