“It has been only two generations since artificial light became so widespread that we moved into artificially lighted environments. Now, most of the light we ingest through our skin and eyes is artificial. We are starved from the natural light spectra and we have overdosed on those spectra that come from artificial light; incandescent, fluorescent, mercury, vapor, sodium, television, and many others which are detrimental to our natural development of our eyesight and perception.” — Jerry Mander