Electronic devices are better kept away when you only want to focus on a good night’s sleep. Every mobile device these days have an option to reduce the emission of blue light so that the eyes are protected from immediate damage. Mornings need to feel less stressful and fresher in order to go ahead with the various tasks for the day. Feeling energized can be different for different people depending on the depth of sleep they have had. One of the factors determining the intensity of your actions and mood is the blue light coming from the sun. You may not be able to discern the color of this light entering your eyes, but you should be aware of the fact that this phenomenon can affect your health.

It is important that we understand the visible light spectrum and the effects of the various lights on our health. The blue wavelengths have a harmful effect on your body since it disrupts your sleep-wake internal body clock. Your alertness and sharpness get boosted with the natural light entering your body; the same effects can be brought out about by the artificial blue light. But none of these should enter beyond a certain limit that your body stays awake and active the whole day, even when it is bedtime. Let us look at how this blue glow can lead to sleep deprivation.

How the Blue Light is Linked with Your Sleep

The blue light passes through the back of your retina to help you clearly see the images on the screen. You know that the retina helps your brain translate lights into images, and the blue light also does the same. However, this may affect the functions of the retina in the long run; so, you need to find ways to reduce the effects of the light on your health.

The circadian rhythm is regulated by the internal clock in your body. It is a 24-hour biological cycle influencing several internal functions. Your body’s ideal times for sleeping and waking up are adjusted by this feature. Environmental cues may be required in most cases for the circadian rhythm, with the functions during daylight and darkness being adjusted accordingly.

Sensors in your eyes are stimulated by the blue-wavelength light to signal your brain’s internal clock. Several modern light bulbs and electronic devices have this blue light, disrupting this internal clock, especially if you are exposed to those devices in the evening. Melatonin is secreted by the pineal glands at night. This instructs your body to either be tired or fully active. When the production of melatonin is inhibited by the blue light from sunlight and devices, your sleep cycles could get affected, resulting in sleep deprivation.

Since the blue light cannot be blocked by your eyes, you need to take necessary measures to avoid the harmful effects of the exposure. Tinted glasses should be used as often as possible when you are on your devices in the evening.


About the Author Harold Garza

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