Scientists used low-frequency household noise to uncover a hidden environmental health threat; the result revealed that everyday hums may damage kidneys, changing how we view modern noise pollution

The larger lesson may be that environmental health risks are not always the loudest or most visible ones. Modern life has filled homes, offices, hospitals, transportation systems, and cities with mechanical sounds that previous generations encountered far less frequently. As scientists learn more about how the body responds to its surroundings, familiar background conditions may deserve a closer look.

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