As you are reading this article on your smartphone, tablet or computer, this means that you are currently exposed to a dangerous blue light that is emitted by all digital devices. And blue light can cause serious and short-term damage to your health. Exposure to blue light can cause eye fatigue, headaches, fatigue, and short-term sleep problems. Symptoms that inevitably affect your daily productivity and mood. However, exposure to blue light can lead to more serious health problems in the long run, increasing the risk of depression, heart disease, obesity and macular degeneration, which leads to visual impairment.
Risks to the health of blue light on the cell phone and other devices
These health risks have led companies to develop blue light protection filters for digital devices to block blue light and reduce the risk of these health problems. Now that we are aware of the dangers of blue light, the question is how do blue light filters work? Firstly, it is important to note that there are different types of blue light filters. Consumers have the option of buying physical items such as glasses, or have the option to switch to night mode on many smart devices.
Many anti-blue light settings on your smartphone are named night mode because of the added importance of protecting yourself from the blue light at night. This is because one of the most harmful effects of exposure to blue light is on your sleep. Blue light has such a big impact on your sleep because it fools our body clocks (or scientific circadian rhythm) into believing it’s still day. Therefore, our body does not produce the melatonin sleep hormone, which makes it much more difficult to sleep and stay asleep. Inevitably, this leaves people feeling grouchy, tired and unproductive the next day.
The science behind the blue light filter
So how do blue light filters work? Physical blue light filters work by providing steady protection against blue light because a filter will be permanently applied to your device. The benefits of physical filters are permanent protection, while maintaining the same quality and color of the screen. In contrast, night mode filters often need to be turned on manually by users (which most people often forget to do) and leave an orange tone on the phone screen, which affects how consumers view the images.
The orange tone that is emitted by the devices in the night mode is due to the science behind how the blue light filters work. Light is composed of electromagnetic particles that travel in waves that are represented as different colors. Together they form the electromagnetic spectrum.
Each wave has a different length and the smaller the length, the greater the energy. Within the visible light area of the spectrum, the blue light has the shortest wavelength. This means that it produces a very high amount of energy, which is why it can be so damaging to your eyes and health. The reason the night mode causes your phone’s screen to be turned to that annoying orange is that the blue light spectrum has been removed from the monitor.
However, physical filters as do the screen appear orange because the material used absorbs blue light instead of changing the emitted light.
Although we have discussed the impact of blue light emitted by digital devices, it is important to recognize that the blue light is all around us. Sources other than digital devices include the sun and LED lighting, which means that from the moment you wake up until the second you turn off the bedside lamp before sleeping, you are exposed.
Not all blue light is harmful, because the blue light from natural sources (the sun) can be extremely beneficial to your health. The benefits of natural light include improving mood, improving reaction times and increasing alertness. So if we do not need to protect ourselves from the blue light found outdoors, how can we protect ourselves from the blue light found in the inner illumination?
When to use the night filter?
Consumers are advised to invest in blue light bulbs to ensure they are protected from this dangerous light at home, especially if you have children. For jobs like reading, it is recommended to invest in an anti-blue bulb, which is a more important purchase than bulbs for your ceiling as the bulbs are kept close to you (leading to greater exposure to blue light). A good light bulb allows you to change the setting to anti-blue light, plus have the option to darken, brighten and even move to be portable. In the case of blue light filter apps, some can be configured to be activated automatically from a certain time in the day.
Best tips and tricks to help limit the effects of blue light
Overall, excessive exposure to blue light can be detrimental to our health, and that is why everyone should take precautions, such as using blue light filters, especially in this digital age where everyone is glued to the phones. It is highly recommended to buy a blue light filter to protect yourself from any health risks and improve your sleep . However, while you wait for it to arrive, we have tips to ensure you have the best possible sleep:
Turn off the digital devices two hours before bedtime
Reduce daily caffeine intake and do not drink caffeine after 4:00 p.m.
Try your best to go to sleep and wake up every day at the same time (even on weekends)
Exercise for at least 10 minutes a day (only 10 minutes can improve your sleep)
Do not eat sugary snacks at bedtime (we recommend a banana or yogurt)
Try meditation at night to calm your body
Reduce the lights around your house two hours before bedtime
Be sure to use your bed only for sleeping (many people are guilty of working at home in bed)
Make sure your room is a quiet place to be (it means reorganization)
Write worries in a book before bed (to avoid worrying about them all night)
We hope we have answered your questions about “How do blue light filters work?” And give you some useful tips to improve your sleep while you wait for your own blue light filter. Please comment any further questions or future requests for articles below!