Artificial light disrupts circadian rhythms from "summary" of The Paleo Solution by Robb Wolf
Artificial light is a convenient modern invention that has drastically changed our lives. While it allows us to work, socialize, and be active well into the night, it also comes with a cost - the disruption of our circadian rhythms. Our bodies are finely tuned to the natural cycles of day and night, a rhythm that has been established over millions of years of evolution. When artificial light is introduced into our environment, especially in the evening and at night, it tricks our bodies into thinking that it is still daytime. This disrupts the production of melatonin, the hormone that regulates our sleep-wake cycle. Instead of winding down and preparing for rest, our bodies remain in a state of alertness, making it difficult to fall asleep and stay asleep. The consequences of this disruption are far-reaching. Poor sleep not only affect...
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