The Importance of Wearing Blue Light Glasses
Do you remember those blue-blocking sunglasses in the 1980s? Like most of us, you may have had no idea whatsoever that they were meant for the NASA space program. Astronauts need protection for their eyes in outer space, where UV rays from the sun can be incredibly strong.
Besides improving visual clarity, glasses that block blue light also have a biological purpose: they help regulate your internal clock to keep your sleeping patterns and other physiologic functions in check.
In short, you need to avoid blue light at night to keep yourself healthy.
In fact, not only blue light but all types of artificial lights pose a health threat which is well ignored by the present generation. Our forefathers never had to deal with this risk because their body clocks were in perfect sync with the rise and fall of the sun, the only source of light during their time.
Our bodies still depend on this internal clock today. Blue light-rich sunlight wakes you up every morning, telling you another day has come. At night, when the sun sun has set, your body should take it as a sign that it’s time to sleep.
The problem is when we refuse to sleep our bodies tell us to.
Instead, we turn on our tablets, smartphones and other devices, all of which give us varying amounts of blue light at a time when we should be getting none. Understandably, the body gets confused as a result.
These days, it has become clearer that one of the least expensive yet most effective ways of protecting your internal clock – and maintaining good sleep patterns and preventing a variety of chronic diseases – is by using blue light-blocking glasses, not just at night but every time there is artificial light.
It’s important to know as well that artificial blue light must not prevented at all times and not only when the sun is down. You should also know that daytime exposure to the sun’s full-spectrum natural light is balanced with red light, and is, in fact, favorable and necessary to rebooting your internal clock.
If you want to get good sleep, be sure to align your circadian rhythms, the first step to which is getting enough bright light during the day. Your pineal gland releases melatonin (hormone that regulates sleep and wakefulness) mainly in response to the contrast of bright light exposure (day) and total darkness (night).
You may be asking, how exactly do these special glasses work? These glasses help prevent damage to the DHA essential fat in your retinal pigmented epithelium, or that part of your eye that makes sunlight available to your body by converting it to DC electric current.