OCT 23, 2017 07:46 AM PDT

Why Blue Light is Bad for Your Health

3 24 1507

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
JUL 10, 2018
Videos
JUL 10, 2018
New Tools in the CRISPR Kit
Some diseases are caused by a single gene mutation. Others are far more complex.
JUL 19, 2018
Videos
JUL 19, 2018
Hazmat Spill at Johns Hopkins
Biohazards are a common problem in any kind of scientific research, and if a spill of dangerous materials occurs, it can be deadly. Luckily, a recent spill
JUL 29, 2018
Space & Astronomy
JUL 29, 2018
Algae in Space: A Potential Food and Fuel Source?
During SpaceX’s recent CRS-15 launch, a mission to resupply the International Space Station with fresh supplies, the commercial space company’s
JUL 31, 2018
Health & Medicine
JUL 31, 2018
The Gross Things That Lurk in Swimming Pools
The warmer temperatures associated with Summertime inevitably lead to more swimming pool visits, but have you ever stopped to think about the gross things
AUG 02, 2018
Cannabis Sciences
AUG 02, 2018
Cannabinoids Used in Treatment for ALS
The Ice Bucket Challenge brought attention to ALS (Amyotrophic Lateral Sclerosis) and the need for further research on the fatal disease. This progressive
AUG 05, 2018
Videos
AUG 05, 2018
Watch a Bird Take Flight in Super-Slow Motion
Many of us watch birds take off into flight right before our eyes every day, but it happens so quickly that we don’t get a chance to observe the mech
Loading Comments...