Electricity changed the way we sleep
- Before electricity, people experienced bright, full-spectrum days of sunlight and dark nights. We slept in a different way than we do now.
- Everything changed when electric lighting was invented in the latter part of the 19th century. Since then there has been an ever-increasing assault on dark.
- Today, most of us get too little light during the day and too much at night for our circadian rhythm to function at its best.
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