What is Blue Light, basically?
Blue light is a visible component of electromagnetic radiation, a broader spectrum of light. Blue light is classified as violet-blue light because it falls between violet and green on the electromagnetic spectrum. Because blue lights are the most powerful lights in the visible light spectrum, they are associated with health risks.
Blue or violet-blue light is harmful to human eyes and can cause major health problems, both visually and otherwise. We need to understand what blue lights are released by computer screens and phones, as well as the health risks linked with their use.
The blue light emitted by computer and phone screens can harm your health in a number of ways. Blue light is a type of radiation that enters your eyes and can cause eye strain, visual impairments, headaches, migraines, and other eye disorders if exposed for long periods of time or in high doses.
Blue Light From Electronic Screens Has Negative Health Effects Blue light, or high-energy visible (HEV) light, is capable of penetrating the retina directly and has a negative impact on health. It is emitted from televisions, cell phones, tablets, laptops, and other electronic screens. The association of blue lights with sleep deprivation is the first and most noticeable consequence.
Blue lights emitted by digital devices have been identified as potential cancer causes by scientists. They also harm your brain by affecting the pineal gland, which can cause sadness, anxiety, mood changes, and sleeping problems.
Melatonin, the hormone that induces sleep, is suppressed in the body when exposed to blue light. This has two consequences:
- Sleep quality is reduced since you fall asleep faster but wake up feeling more fatigued than normal.
- Blue lights have an effect on your amygdala, which is your emotional centre. You become agitated and have mood swings as a result of this.
- Growth hormones are released less frequently, making you feel younger.
Effects of blue light on your skin
Because there is a link between ultraviolet radiation and the creation of free radicals, which can cellular skin damage (the skin's cellular DNA), Blue light affects your skin. It destroys DNA and causes it to age faster, making you appear older than you are. It also impacts our sleep patterns by decreasing melatonin, a hormone that keeps our bodies on a consistent sleeping schedule. When the blue light is reflected into the retina by cone photoreceptor cells, causes damage to blue light in the eyes.
Blue light harms the skin in two ways:
- To begin with, it causes direct harm to DNA by altering its structure, which can result in skin cancer.
- Second, it prevents the synthesis of vitamin B3 (niacin), which causes a rise in skin melanin production and so skin darkening and other skin problems. Photoaging is the term for this phenomenon.
Skin ageing — the most prevalent side effect is accelerated skin ageing. Because it has shorter wavelengths than red light, it can penetrate deeper into the skin and inflict more harm to the dermal cells. According to a recent study, long-term exposure to blue light accelerates skin ageing by lowering hyaluronic acid levels in the skin.
How Can You Keep Your Skin Safe From Computer Rays?
The skin is a vital organ, and its sensitivity must be acknowledged. "Various allergens and contaminants in the environment cause sensitive skin to react. It is critical to avoid putting undue strain on the skin. When a person is subjected to high heat or cold, their skin may suffer because it lacks the ability to adjust to such changes.
Throughout our lives, we are exposed to approximately 100 billion particles of radiation from numerous sources, including medical treatments such as CT scans.
Excessive exposure to radiation can harm your skin, which is the largest and most exposed organ. The direct emission of electromagnetic radiation from the computer screen, as well as the exposure of this vulnerable region of the body to ultraviolet rays, must be carefully monitored.
- Purchase a separate monitor for your business PC. These monitors feature faster refresh rates, which helps to protect you from dangerous radiation.
- While working on the computer, use sunscreen (SPF 30+) on a frequent basis.
- If you live in a dry area, use a humidifier and you can also apply glow serum to your skin.
- Moisturize your skin on a daily basis, especially if you spend a lot of time in front of the computer.
- Make sure you take frequent pauses and stretch frequently during those breaks.
- Over your ordinary spectacles, wear a pair of blue-light blocking glasses.
- High-frequency radiation should be avoided: Microwaves are emitted by cordless phones, cell phones, laptop computers, tablets, iPads, and other electronic gadgets.
Blue light eye damage
Computer screens emit high levels of blue light, which can harm your eyes and develop under the eyes dark circles. This is especially true before bedtime when using technological devices. Blue light is a type of light that lingers in the retina, causing retinal damage. Blue light, on the other hand, can trigger different changes during the day and night. These can alter the way your eyes work and create vision difficulties.
The intensity of the damaging blue light exposure from these devices is seen to be lower than it actually is due to the distances between our pupils and computer monitors, cell phones, tablets, and other devices. It does, however, have the potential to do harm.
Syndrome of Computer Vision
Excessive computer use causes eye strain and pain, which is referred to as Computer Vision Syndrome (CVS). The eyes are exposed to blue light over an extended period of time, which causes CVS. The normal human eye can see roughly 10 million colours, which are created by stimulating the retina with various wavelengths of light.
Cones sense colour, while rods provide eyesight in low light. The fovea, which gives us our central vision for fine detail, is where the cones are most abundant. The rods are employed for night vision and peripheral vision.
A computer screen emits light that has a peak in the blue/violet region; this wavelength has a lot of energy, which stimulates the cones more, making CVS symptoms worse.
Blue light is emitted by computers, televisions, mobile devices, and other gadgets. Ultraviolet light has the potential to harm the skin and eyes. While all of this appears to be extremely scientific, just look at the number of people in this generation who have hurting eyes.
Eye problems such as Sjogren's Syndrome and dry eye syndrome can be exacerbated by harmful ultraviolet and blue radiation from computers and television sets. Long-term exposure to the blue light generated by computers damages the retina.
Early signs include dryness in the eyes, a burning feeling, excessive blinking, or watery eyes. Prevent wrinkles and fine lines on your face by wearing sunglasses or putting a blue light filter on your computer monitor.
Yellow-tinted lenses are used in the blue light filters. They prevent dangerous blue radiation and are beneficial to those who must spend long periods of time in front of computer screens. Another approach for reducing eye strain is to wear computer glasses.
Do you believe you are protected within your four walls? Please reconsider. Blue light is abundant on most computer screens and televisions. Keep your devices at least 20 inches away from your face when using them, and avoid looking at them straight after the sun goes down. If you can't turn off all displays at least two hours before bedtime, try setting your electronic devices to emit green or amber light instead. If you'll be out in the sun for an extended period of time, you should use sunscreen with an SPF of at least 30.