What Is Blue Light?
Blue light is a high energy part of the visible light spectrum that's pretty much everywhere and considered both beneficial and harmful. When it comes to blue light emitted by the sun, it is actually beneficial because it can help improve immunity, decrease daytime drowsiness, strengthen your attention span, enhance mood, and even speed up your reaction time.
Yes, these are all good things. However, you also get exposed to blue wavelengths of light from the various tech devices you use on a regular basis, including your PC, laptop, tablet computer, smartphone, and other gadgets that have screens that emit this type of light artificially. What all this excess exposure does is shake up your body's natural sleep-wake cycle, but that's not all!
There is some evidence that vision can be affected as well if you are being exposed to too much blue wavelength light. In fact, there are preliminary studies that suggest that ongoing exposure to blue wavelengths of light could contribute to retinal damage, although it's still controversial and too early to know for sure.
As with most things we're collectively exposed to on a regular basis, being proactive is important when it comes to blue wavelengths in the visible light spectrum. So, how can you protect yourself from too much blue light? Here are eight possible ways to achieve this goal.