Thursday, 1 October 2015

FMP: Sleep Deprivation Caused By Artificial Lights

Irregular sleep pattern is one of the most common bad habit modern citizens have, ever since the nightclubs were invented, human sleeping time has been shifted by artificial lights, this including household lights, mobiles, laptops and such. 

Circadian rhythm is any biological process that displays an endogenous, entrainable oscillation of about 24 hours. These 24-hour rhythms are driven by a circadian clock, and they have been widely observed in plants, animals, fungi, and cyanobacteria. I am not going to go too deep about circadian rhythm as it covers a huge range of biology. In simple term, Circadian rhythm is directly connected to our sleeping pattern and it can be affected easily.

Researchers say. The artificial light emitted by these devices signals our brain to stay awake, as it grows accustomed to thinking light equates to daytime. Our natural circadian rhythms become disjointed, and as a result, our brain produces less of the hormone melatonin, which is produced in the absence of light and helps regulate sleep.

"We think that the advent of electric lighting has significantly impacted upon sleep-wake patterns," Professor Shantha Rajaratnam, from Monash University's School of Psychology and Psychiatry "But with the proliferation of electronic devices that emit light we are expecting that these problems will increase."

Due to this effect, a irregular circadian rhythm could lead to some severe consequences, it could causes several types of cancer (breast and prostate cancer), debilities, heart diseases and obesity. 

The researches are clear that all the artificial lights has a certain level of disruption to human circadian rhythm, it is almost impossible to shield yourself from artificial lights in a city (that means you will have to shut down all the light-emitting sources including cars on the street and other people's lighting products). Right here I am not suggesting that I have the idea for adjusting entire human race's circadian rhythm, I am suggesting to use a persuasion to convince people to be on bed at a regular pattern, without forcing or by any means of rewards/punishments. 

We know the problem, and since the problem will be almost impossible to overcome, we can only then choose a different way to work the issue out, even the method has not directly related to the cause of such problem. 

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