Getting quality sleep is essential for maintaining a healthy body. The average adult needs 7-8 hours of sleep per night, and studies have shown that getting less than 6 hours can lead to weight gain and memory problems. One way to help improve your sleep is through blue light glasses.
Blue light glasses are intended to combat the negative effects of artificial light exposure, such as eye strain, headaches, disrupted circadian rhythms, and insomnia. But do they actually work? Here’s what you need to know about blue light glasses and how they can help with sleep issues.
What is light?
Light is essentially a byproduct of our energy production by the sun. It is the spectrum of light that makes up white. Light consists of a broad range of wavelengths of light. Blue light is the shortest wavelength light, and in our body this wavelength passes through our eye without damaging the lens. In contrast, red light passes through the lens, causing it to reflect.
This is where the red lights you find in exit signs come into play. White light consists of all wavelengths, including red. What is blue light? Blue light is the spectrum of light that corresponds to the presence of most animals in the world. Blue light is thought to disrupt our sleep patterns, our circadian rhythms, and our immune systems.
Why do we need sleep?
We need a good night’s sleep to repair cells and help our bodies function properly. A good night’s rest also helps to keep our mood stable, lowers our risk of heart disease, and helps us avoid mental exhaustion.
That’s why you might have heard of the importance of sleep, especially if you have children. Here’s a short list of things you might not know about how sleep affects your health: Studies have found that as adults, we need 8 hours of sleep per night.
Adults who have longer hours of sleep are more likely to be health conscious, work at their job, and have better relationships. Younger children and teens need 7-8 hours of sleep per night, according to the National Sleep Foundation. This is because your sleep cycle (or sleep cycle) continues until around age 13 or 14 years old.
How does blue light affect sleep?
Blue light exposure has been associated with poor sleep among adults. And artificial light, especially through screens, is the main culprit. In fact, one study has shown that the blue light in screens is “akin to prescription medication that prevents the proper regulation of circadian rhythms”.
Adults who were exposed to screens more than 7 hours per day had lower sleep efficiency than those who used screens less than 6 hours. Blue light exposure also leads to insomnia. On the flip side, the blue light filters you see in blue light glasses may help improve the sleep of adults.
What do blue light glasses do? Blue light glasses filter blue light before it enters your eyes. Your brain responds to blue light with a “phosphorescence effect”, which stimulates the production of serotonin.
Do blue light glasses help with sleep?
If you wear blue light glasses to help get a good night’s sleep, the answer is probably yes. Blue light glasses filter blue light, which blocks many of the negative effects of artificial light exposure. Blue light has been associated with sleep disorders like insomnia, and artificial light can disrupt circadian rhythms.
So, wearing blue light glasses could definitely be helpful. Of course, there are a few caveats you should be aware of before investing in blue light glasses. First, many people don’t wear the blue light glasses they purchase because they don’t believe they are effective.
It’s important to test the glasses first to see how well they work. Blue light glasses work by blocking blue light and then turning red, which is the color blue.
Reducing the amount of blue light exposure.
According to Tylenol, “The blue wavelength of light blocks certain cells in your brain that release a hormone called Melatonin, which is responsible for telling your body to turn down the lights and get some shut-eye.”
Blue light is the same wavelength as sunlight, but due to modern technology, we get much more blue light exposure than ever before. A U.S. government report found that “an average of 2,790 minutes of indoor exposure to blue-emitting lighting occurred per day.
That’s equivalent to roughly 67 hours of blue light exposure each week.” This is especially bad during the winter and at night, because blue light exposure can make it difficult to fall asleep. Blue light glasses block this blue light exposure from coming into your eyes.
Reducing eye strain and headaches.
Blue light glasses are designed to prevent and counteract eye strain and headaches that can often be caused by working at computers. When working at a computer, blue light from the screen can be irritating to your eyes, as the higher the intensity of the light, the more it can burn your retinas, which is the tissue that sits at the back of your eyes.
A study published in 2013, in the journal Eye found that prolonged exposure to blue light can damage your retinas by 80%, reducing the long-term effectiveness of your lenses. Reducing eye strain can be as simple as wearing blue light glasses throughout the day to block the effects of the blue light that you expose yourself to during the day.
Improving sleep cycles and insomnia.
Blue light glasses are essentially a light filter that filters out harmful blue light wavelengths. In short, this light is emitted from fluorescent lights, computer monitors, and mobile devices such as phones, tablets, and laptops.
These light sources emit blue light, which can increase levels of the hormone melatonin in the body, leading to symptoms of insomnia, such as difficulty sleeping. Many people are already aware of the negative effects of blue light on the circadian rhythm, or sleep cycle.
Blue light may delay or interrupt sleep, increasing the likelihood of getting less restful sleep. Blue light filtering glasses, also called blue light blocking glasses, are useful for limiting exposure to blue light. Blue light is normally transmitted by most electronic devices.
Blue light glasses are an over-the-counter product that can help to keep your eyes healthy and maintain proper sleep patterns. The product is similar to visor hats that block sun and glare, but instead of blocking UV rays, it filters blue light.
Blue light is natural and has been part of our environment for thousands of years. It is found in the blue part of the sun, which has been referred to as the sun’s “starlight” for more than 5,000 years. Blue light has been proven to have a number of beneficial effects, however, certain types of blue light exposure can affect our circadian rhythms and sleep patterns.