Monday, July 14, 2014

The effects of artificial light on humans and other creatures.

THE INSIDIOUSLY NEGATIVE IMPACT OF OUR CONVENIENCE DRIVEN, BOTTOM-LINE- 
POWER HUNGRY LIFESTYLE



We humans take pride in lighting up the night. Glamorous cities are glowing with neon lights. We can see some of them from many miles away. We have conquered the darkness. As with everything artificial, it has consequences. I like us to look at artificial lighting from the angles of convenience, the bottom-line and our need for power. Indeed it gives us a sense of power to conquer the night, the darkness, and the sinister things lurking there. The bottom-line of course weaves itself through the power plants who supply the lighting, as well as the stores, restaurants and hotels which can stay open late to make money due to the lighting. Yes, it is  most convenient to go to places at any time of the day or study or work late into the night for various reasons. Have we asked on how this constant artificial lighting effects us and other life forms?

There have been some studies which have started giving us insight. I like to gather some of these insights in this blog entry so that in the end we may ask ourselves questions, such as would we be willing to change at least for our own sake? In a documentary “The City Dark” I heard that our extreme city lighting causes animals to become disoriented. For example thousands of sea turtles who use highland beach as nesting ground, who hedge and then would move toward the sea guided by the star light, instead, get turned around and move toward the city lights and die in the process. The turtles only have a few minutes to get to the ocean before they are dehydrated or get eaten by predators. Many birds encounter similar problems. The lit up cities confuse the birds which navigate by the stars and they end up flying into the canyons of skyscrapers and buildings and millions of them die.1

However, that alone is not the main problem. We are under the illusion that all these lights are not harmful to humans. There have been findings that the quality and quantity of illumination individuals receive and the time of day is crucial to their well being. Poor artificial lighting (and exposure to light while sleeping) is linked to incidences of stress, poor health and reduced life span.
The upper layers of the skin absorb most of the radiation and visible light they receive, penetrating deep down into the dermis.2 An increasing number of studies suggest that artificial light has adverse effects on human health. The light throws off the circadian rhythm. The hormone melatonin which is produced to promote drowsiness and sleep when the sun sets, gets out of balance. Cell division also follows circadian rhythm. Damage to cell division is characteristic of cancer!3 - Do the math!

Sleep deprivation reduces insulin sensitivity. The aggravation of other health issues and social problems are implicated to fluorescent light, such as: Aggression, ALS, Attention Deficit, Autism, Cancer, reduced concentration. Confusion. Diabetes, dermatitis, dizziness, Eczema, Epilepsy, Eye irritation, Fatigue, headaches, hyperactivity, irritability, learning difficulties, Lupus, reduced muscle strength, MS, nausea etc.4







Type of Lights5 and their impact


Pink fluorescent
Day light white fluorescent
Full spectrum plastic glazing
Natural outdoor daylight


Average lifespan of C3H Mice


7.5 months
8.2 months
15.6 months
16.1 months











This study should make us think on how these lights effect us. This then leads to the next step in expanding our thinking. Rarely do we ask questions on how what we do effects our children.
“Leading Australian researcher Professor Shanta Rajaratnam says there is growing evidence, that the night-time use of portable digital devices is likely to compound the problems associated with artificial lighting.'We think that the advent of electric lighting has significantly impacted our sleep-wake patterns, but with the proliferation of electronic devices that emit light, we are expecting that these problems will increase' said Professor Rajaratnam from Monash University's school of Psychology and Psychiatry. A recent study in the United States showed that devices such as laptops, smart phones and tablets emit approximately 30 to 50 lux, about half the illumination of an ordinary room light...........this level of emission, 30 to 50 lux, is sufficient over a week or so to delay the timing of the circadian clock as well as suppress the production of the hormone melatonin.”6

How many hours does your child spend with those devises, particularly in the evening? Professor Rajaratnam recommends that these devices should be shut down two hours or at least one hour before bedtime. Now that we have gone from bigger devices to hand held devices we have taken these lights to bed, a place for rest. Of course it is convenient to have these devises right on hand, on the night stand and just about anywhere we go. It is also a matter of power to have information at our finger tips. However, with this life style we may also pay dearly, more than we are ready to give. The same is with TV. Some people fall asleep with TV's on in a recliner, one of the worst unhealthy scenarios. No wonder, individuals are sleep deprived. Our thoughts should then progress outward to the community. Schools may also rethink in asking their students to complete their work online. Students may work late due to homework on these devices something that may need to change.

We have ignorantly embraced something that has harmful consequences, but if we continue after studies show us what effects there are, than we ourselves are at fault if we and our children are in ill health. Furthermore, if companies fight researchers on this subject just to support the bottom line and make as much money as possible, then they have a criminal mind and do not have the benefit of our children in their mind. Too many companies have sponsored so-called researches in other areas which contradicted honest researches which uncovered uncomfortable truth. This must not happen here. Our young people need their sleep and their health and it is our responsibility to protect them. Convenience, power games and the bottom-line must never be involved when it comes to our children and youth.

Whether it is the light in appliances or our buildings we have neglected several important questions:

“What do we lose if we lose the night”?7

“If a civilization could not see the stars and the universe, would they come to believe they are more important because that is all they see?”8 (a harmful self importance!)

“Does the lack of contact with the night sky do something to us that is very subtle.”9

“Is a lack of watching the stars chewing away our sense of childlike wonderment?”10

“Is our lack of connectedness to the starry sky building an ignorant civilization?

After all, each civilization up to now build a science of things they needed to understand around the night sky. If we lose the decoding of the universe above, will we close the door that keeps the character of human kind intact?”11

Are convenience, power and the bottom-line really worth it in the long run?




Sources:
1“The City Dark” documentary (available on Netflix)
2ec.europa.eu/health .../artificial light/.../index.htm
4http://www.hese-project.org/hese-uk/en/issues/cfl.php
5http://www.hese-project.org/hese-uk/en/issues/cfl.php
6http://www.abc.net.au/news/2013-07-01/artificial-light-leading-to-increase-in-sleep-disorders/4790448
7“The City Dark” documentary (see Netflix)
8“The City Dark” documentary (see Netflix)
9“The City Dark” documentary (see Netflix)
10“The City Dark” documentary (see Netflix)
11“The City Dark” documentary (see Netflix)