What is blue light?
Blue light, like many things in its natural form, is actually a good thing! Blue light is emitted from almost every light-generating source, the largest being the sun.
There is a whole spectrum of wavelengths that make up “white light”, and these wavelengths have a lot to do with how we perceive colour. Not all colours of light have the same effect. Some are invisible, like infra-red, and some are harmful, like UVA and UVB. Blue light straddles that tipping point from UV into the healthy visible spectrum.
What's great about it?
Circadian rhythms are found in most living things (plants, animals, and microorganisms included) and are essentially physical, mental, and behavioral changes that follow a daily cycle - typically responding to light and darkness as the earth makes its full 24 hour rotation. Feeling alert and energetic in the morning and calm and sleepy at night is an example of a healthy circadian rhythm.
So, where did it all go wrong?
It keeps us overstimulated and alert for far longer than is healthy. It slows down, if not completely annihilates, our body's healthy production of melatonin (the sleepy-time hormone), and wreaks havoc on our circadian rhythms.
If you find that you wake up tired and generally feel permanently exhausted, it’s not necessarily a bi-product of adulthood, but could be overexposure to blue light. Sleep is chronically important. Not only does it make you feel better and think clearer, but sleep has a monumental impact on your body's adrenal, nervous, and immune systems.
Good sleep leads to lower blood pressure and higher immunity, and has been linked to many larger issues like weight gain, obesity, diabetes, and heart disease. Are we telling you a pair of glasses will change that? No, but better sleep and better self-care, definitely will.