Excessive Exposure to Blue Light Can Result in Your Disruptive Sleep, Says Research

With the advancement of technology, mobiles, laptops, and tablets have become more than a necessity of life. One cannot simply survive in the world without acquiring any of these. Because, well, who doesn’t know the importance of owning one? Whether you are a student or someone who runs his own business. Whether you are a stay-at-home mom or someone who works. You simply cannot live without owning a mobile, laptop or tablet.

Well, apart from all this talk, does anyone know that how using such techy gadgets can lead us towards chronic illnesses? Making yourself vulnerable to the blue light emitted by these gadgets can make you prone to chronic illnesses.

In this article, we will be discussing blue light. And how you can protect yourself from the harmful effects of this light. Since we simply cannot live without gadgets in this age and era, thus taking some preventive measures will definitely be helpful. Blue light has far more harmful effects than those that we can imagine. In order to warn keep you away from its detrimental health drawbacks, we will be highlighting the dos and donts of using gadgets. So that you can protect yourself as well as people in your surroundings.

Know About Blue Light

Blue lights are quite effective and beneficial during the daytime. However, after the day ends and the night descends, blue light can actually start becoming harmful instead of beneficial. The reason behind it is the blue wavelengths. The same blue light which acts as a booster in the day works opposite to it in the night. In the day, blue light helps in keeping one’s attention retained and keeps one’s mood refreshing. At the night, the blue light can actually affect your sleep patterns which in return can lead you towards disturbed sleep patterns.

Effects of Blue Light On One’s Sleep

The circadian system in everyone works in a different way. What studies show is that the average circadian system is of about 24 hours. It is reported that people who are night owls or remain awake late at night experience longer circadian rhythms. Contrary to that, people who are used to of waking up early morning experience less than 24 hours of circadian rhythms.

A Harvard Medical School’s Professor, namely Dr.Charles Czeisler, once commented in 1981 that the internal clock of people remains aligned with the daylight.

Thus, it shows that how our internal circadian system has a relationship with the sunlight.

The Exposure of Blue Light And Its Effects

The effects of blue light are twice the harmful as compared to any other light, note the researchers. The exposure to blue light helps in preventing the release of a hormone called melatonin. This hormone can consequently result in the altering of circadian rhythms

Though there is no evidence to back this up, some of the researches say that blue light exposure can make a person vulnerable to chronic illnesses. Such as cancer, obesity or heart diseases. It has to be proved yet.10 people were given different shifts to work and the results were quite striking. Since people who worked at night experienced a change in their circadian system. The increase in the sugar level of people who worked during night shifts led them to a prediabetic state.

LED lights are said to be safer than the fluorescent ones. However, they still don’t protect as they should.  So how can you protect your vision?

Protection Tips & Tricks

In order to protect your eyes from the blue light’s effects:

  • Try to have red dim lights at night. Red lights hardly make any shifts in circadian rhythm.
  • Going to bed, try switching your gadgets off 2-3 hours before.
  • Use blue-blocking glasses which prevents reaching the blue light.
  • Or use/install an app which changes your gadgets’ light during night time.


  • https://www.health.harvard.edu/staying-healthy/blue-light-has-a-dark-side


Areeba Hussain

Areeba is an independent medical and healthcare writer. For the last three years, she is writing for Tophealthjournal. Her prime areas of interest are diseases, medicine, treatments, and alternative therapies. Twitter @Areeba94789300

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