Protecting Your Health with Blue Light Glasses
Do you remember those blue-blocking sunglasses in the 1980s? You probably didn’t know that they were originally made for the NASA space program. Astronauts need protection for their eyes in outer space, where UV rays from the sun can be incredibly strong.
Far beyond ensuring visual clarity, blue light-blocking glasses actually have a biological purpose, and that is to help regulate your internal body clock so as to maintain good sleep patterns and other physiologic functions.
In short, it is important to avoid blue light at night in order to protect your health.
In fact, exposure to artificial light, not just blue light, is one of the most overlooked health risks that exist in modern times. Our early ancestors never had to worry because they all began their day with the rise and fall of the sun, which perfectly synchronized with their internal rhythm.
Our bodies still depend on this internal clock today. In the morning, blue light-rich sunlight alerts your body that you need to wake up. At night, as the sun sets, your body should pick up the signal that you need to sleep.
The problem is when we no longer go to sleep when the sun sets.
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.
Nowadays, it’s clearer more than ever that one of the cheapest yet most effective ways of protecting your body’s internal rhythm – and thus improving your sleep patterns and reducing your risk of getting several chronic diseases – is with the use of blue light-blocking glasses not only at night but anytime you’re exposed to artificial light.
It’s also important to take note that artificial blue light must always be avoided, not only at night. Note that exposure to the sun’s full-spectrum natural light during the day is balanced with red light, and is beneficial and even necessary to resetting your internal rhythm.
If you want to have a better sleep pattern, first get your circadian rhythms in tune, and to do that, you need to start by getting lots of bright light at daytime. Your pineal gland produces melatonin, the hormone that regulates sleep and wakefulness, based on the balance of bright light (at daytime) and complete darkness (at nighttime).
You may be wondering how these special glasses provide protection. These glasses mainly work by preventing damage to the DHA essential fat in your retinal pigmented epithelium, which is simply a part of your eye that is responsible for converting sunlight to DC electric current, which your body needs.