light

Blue light found to improve brain function and focus better than coffee

Wednesday, November 27, 2013 by: Ethan A. Huff, staff writer
Tags: blue light, brain function, coffee

eTrust Pro Certified

Delicious Pin It
(NaturalNews) Swedish researchers have made a fascinating discovery with regard to short wavelength blue light that suggests that it could be used as a natural therapy to help improve cognitive function and boost energy levels. In a test comparing the effects of blue light to caffeine and several other modalities, a team of scientists from Mid Sweden University in Ostersund found that simple exposure to blue light actually outperforms caffeine in helping people to think more clearly, focus on the task at hand and have enough energy to get through the day.

While previous research has shown that exposure to blue light, especially right before bed, can obstruct the natural sleep cycle by interfering with hormone production, this latest study found quite the opposite in terms of how it affects brain and motor function. Not only does exposure to blue light help promote better focus, according to the latest data, even in the presence of distractions, but it also enhances overall psychomotor function and alertness.

To arrive at this conclusion, a group of 21 healthy individuals was instructed to perform a computer-based psychomotor vigilance test both before and after undergoing one of four randomly assigned trial conditions. These conditions included exposure to the following: white light and a placebo, white light and 240 milligrams (mg) of caffeine, blue light and a placebo, or blue light and 240 mg of caffeine. Following the exposures and the test, the research team analyzed the results using the Karolinska Sleepiness Scale.

What they found was that both the caffeine only and the blue light only groups experienced enhanced accuracy when taking a visual reaction test that required making a decision. Not only were the participants in these two groups better equipped to make the decision, but they were also able to make it faster than those in the other two groups. Additionally, the blue light and caffeine groups were found to have improved overall psychomotor function compared to the other groups.

However, the blue light only group outperformed the caffeine group in several other key areas, one being a test of executive function that involved introducing a distraction into the mix. Those in the blue light only group had improved accuracy and consistently outperformed those in the caffeine only group when both congruent and incongruent distractions were put before them. Visual reaction performance was also substantially improved in the blue light only group, and especially among participants with blue eyes.

"Blue light and caffeine demonstrated distinct effects on aspects of psychomotor function and have the potential to positively influence a range of settings where cognitive function and alertness are important," wrote the authors about their findings, which were recently published in the open-access journal PLOS ONE.

Blue light also shown to help treat pain, improve brain function among blind individuals

The study builds on related research involving the use of blue light to improve memory, alertness and reaction time. Doctors at the University Hospital of Heidelberg in Germany, for instance, have already developed a blue light patch that can be used to treat chronic pain. And another study on blue light that was published earlier this year found that it can be used to help stimulate and improve brain activity in blind patients.

"[Blue] light stimulates higher cognitive brain activity, independently of vision, and engages supplemental brain areas to perform an ongoing cognitive process," wrote the authors of this earlier study, from the University of Montreal in Quebec, Canada. Their study was published in the Journal of Cognitive Neuroscience.

Sources for this article include:

http://www.plosone.org

http://www.dailymail.co.uk

http://boston.cbslocal.com

http://www.ncbi.nlm.nih.gov

Get breaking news alerts on GMOs, fluoride, superfoods, natural cures and more...
Join over four million monthly readers. Email privacy 100% protected. Unsubscribe at any time.


Have comments on this article? Post them here:

comments powered by Disqus

Take Action: Support NaturalNews.com

Email this article to a friend

Permalink to this article:

Reprinting this article: Non-commercial use OK, cite NaturalNews.com with clickable link.

Embed article link: (copy HTML code below):
Most Popular
Today | Week | Month | Year

See all Top Headlines...



GET SHOW DETAILS
+ a FREE GIFT

Now Available at ShopNaturalNews.com

O3 Essentials OraJuvenate™
A powerful, cleansing dental cream for maximum oral/dental health.
New Cancer Solutions
Over 3 hours of content covering today’s best cancer tests, how to kill cancer cells and the best diets and exercise routines.
Freeze-Dried 100% Organic Whole Corn
Our freeze-drying method preserves taste, texture and nutrients better than any other food preservation method ever invented.
Fenix TK35 Flashlight
Tough, waterproof, extremely bright and it’s touted to throw an 800+ lumen beam more than 1,000 feet into the night.
Inca Treasure Smoothie Pack
This pack of our four most popular superfoods from South America is the perfect combo pack for smoothie lovers.
Pink Himalayan Salt
This salt delivers significant levels of magnesium, zinc and selenium, with trace levels of dozens of other elements.
Pinhole Glasses - Aviator Style
Pinhole glasses are becoming famous for helping people improve their vision without the risks of laser surgery.
Oxy-Rich Facial Serum
O3 Essentials Jojoba Oxy-Rich Facial Serum is cellular nourishment for your skin. Helps smooth fine lines while enhancing tissue elasticity.
Freeze-Dried 100% Blackberry Halves
Our freeze-dried blackberry halves are grown in Serbia under strict organic standards.

Also on NaturalNews:

Health Ranger Videos
Activist music
CounterThink Cartoons
Food documentaries
FREE Special Reports
Podcasts
Colloidal Silver

Advertise with NaturalNews...

Support NaturalNews Sponsors:

Advertise with NaturalNews...

Most Popular Stories

Flu shot kills 19-year-old, but vaccine industry still has total immunity against lawsuits
Here's a nutty fact: Eating more tree nuts lowers the risk of all-cause death by up to 20 percent
Six important facts you're not being told about lost Malaysia Airlines Flight 370
Malaysia Airlines Flight 370 now clearly a government cover-up: All evidence contradicts official story
10 other companies that use the same Subway yoga mat chemical in their buns
BLM fracking racket exposed! Armed siege and cattle theft from Bundy ranch really about fracking leases
High-dose vitamin C injections shown to annihilate cancer
U.S. treating meat with ammonia, bleach and antibiotics to kill the '24-hour sickness'
USDA to allow U.S. to be overrun with contaminated chicken from China
Vaccine fraud exposed: Measles and mumps making a huge comeback because vaccines are designed to fail, say Merck virologists
Battle for humanity nearly lost: global food supply deliberately engineered to end life, not nourish it
Diet soda, aspartame linked to premature deaths in women

25 Amazing Facts About Food

This FREE downloadable report unveils a collection of astonishing and little-known facts about the food we eat very day. Click here to read it now...

 

Resveratrol and its Effects on Human Health and Longevity - Myth or Miracle.

Unlock the secrets of cellular health with the "miracle" nutrient Resveratrol Click here to read it now...

 

Nutrition Can Save America

FREE online report shows how we can save America through a nutrition health care revolution. "Eating healthy is patriotic!" Click here to read it now...

The Healing Power of Sunlight and Vitamin D

In this exclusive interview, Dr. Michael Holick reveals fascinating facts on how vitamin D is created and used in the human body to ward off chronic diseases like cancer, osteoporosis, mental disorders and more. Click here to read it now...

Vaccines: Get the Full Story

The International Medical Council on Vaccination has released, exclusively through NaturalNews.com, a groundbreaking document containing the signatures of physicians, brain surgeons and professors, all of which have signed on to a document stating that vaccines pose a significant risk of harm to the health of children. Click here to read it now...

Health Ranger Storable Organics

GMO-free, chemical-free foods and superfoods for long-term storage and preparedness. See selection at www.StorableOrganics.com



Recommended Resources On:

Natural News trends
Health Ranger news
Natural News GMOs
Mike Adams tracker
Natural News photos
Natural News Global
Natural News in focus
Natural News connect
Natural News shocking stories
Natural News radar
GMOs
Quackwatch
Vaccines
Health freedom
Dr. Paul Offit

This site is part of the Natural News Network © 2014 All Rights Reserved. Privacy | Terms All content posted on this site is commentary or opinion and is protected under Free Speech. Truth Publishing International, LTD. is not responsible for content written by contributing authors. The information on this site is provided for educational and entertainment purposes only. It is not intended as a substitute for professional advice of any kind. Truth Publishing assumes no responsibility for the use or misuse of this material. Your use of this website indicates your agreement to these terms and those published here. All trademarks, registered trademarks and servicemarks mentioned on this site are the property of their respective owners.

eTrust Pro Certified Android app on Google Play

Sign up for the FREE Natural News Email Newsletter

Receive breaking news on GMOs, vaccines, fluoride, radiation protection, natural cures, food safety alerts and interviews with the world's top experts on natural health and more.

Join over 7 million monthly readers of NaturalNews.com, the internet's No. 1 natural health news site. (Source: Alexa.com)

Your email address *

Please enter the code you see above*

No Thanks

Already have it and love it!

Natural News supports and helps fund these organizations:

* Required. Once you click submit, we will send you an email asking you to confirm your free registration. Your privacy is assured and your information is kept confidential. You may unsubscribe at anytime.