Although we live in the 21st century with modern technology permeating every aspect of our lives, our bodies and brain structure haven’t changed significantly in hundreds of thousands of years.

While we have adapted to our modern tech-lifestyle intellectually, our biology has not. For 99.9% of the existence of humanity, our light has come from the sun, sunlight reflected off the surface of the moon, stars and fire. Our bodies have evolved based on a regular light cycle. This means light causes our body to produce certain regulatory hormones and darkness does the same.

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