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New research links LED streetlights to increased risk of cancer

Researchers at the University of Exeter and the Barcelona Institute for Global Health have concluded that there is a “strong link” between exposure to LED lighting and increased risk of breast and prostate cancer. The “blue light” emitted by LED lights seems to affect circadian rhythms and sleeping patterns, which then impacts hormone levels. “Humans have evolved to need light during the day and darkness at night,” researcher Alejandro Sánchez de Miguel told The Telegraph. “As towns and cities replace older lighting, we’re all exposed to higher levels of ‘blue’ lights, which can disrupt our biological clocks.”

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