Is Artificial Light Wrecking Your Sleep?
Shannon Harvey
On January 27, 1880, Thomas Edison was granted U.S patent 223,898 for “An electric lamp for giving light by incandescence.” He had invented the world’s first commercially viable light bulb and within a couple of decades every home and business throughout America and Europe was illuminated with artificial light. As the founder of General Electric he had a vested interest in rebranding the night as the beginning rather than the end of the day used his celebrity status to boast that he needed only four or five hours of sleep each night. As Alan Derickson writes in his book... Read full article »
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