What is it?
Light is a spectrum of colors with each color being of a differing amount of energy and wavelength. Red light at one end, with longer wavelengths and less energy and blue light at the other, with high energy and shorter wavelengths.
Sunlight, contains all the colors of the visible spectrum in balance, and was our only source of light, until humans invented artificial light - fire, oil lamps, the lightbulb, computers… Today in our digital world we are exposed to light on a constant basis, much of it the artificial blue light emitted by devices and light bulbs. Its cumulative effect is having negative impacts on our health, from disturbing our sleep to harming our eyes.
What are the benefits?
Blue light is actually highly important to our lives and has many benefits.
✓ Sets the body’s natural clock, our circadian rhythm
✓ Stimulates the release of cortisol, which promotes wakefulness and a healthy response to stress.
✓ Boosts our alertness, short-term focus, and makes us productive
Is it harmful?
Yes, if we are exposed to the artificial version regularly. Artificial blue light tricks our brain into believing it’s still daytime and should be awake not asleep. This is harmful for many reasons.
✓ Disrupts our ability to get the restful sleep our body requires.
✓ Our mitochondria, the cell’s powerhouse, can’t properly recharge and repair.
✓ Mitochondria dysfunction leads to critical health issues such as cancer, Alzheimer’s, obesity, diabetes, autism, autoimmune diseases, depression, and others.
✓ Staring at a digital screen strains the eyes, leading to blurry vision, headaches, and difficulty focusing.