California’s public health authorities' lists safety recommendations amid growing concerns about the potential long-term health effects of mobile phone radiation. Although the advisory was first issued several years ago, it highlighted persistent public confusion surrounding the impact of continuous exposure to radio frequency energy on the human body. The guidance was notable because it represented one of the earliest efforts by a major health agency to offer clear, practical steps for limiting routine exposure. By encouraging people to increase distance from their devices, reduce use during weak signals, and avoid keeping phones close while sleeping, the recommendations aimed to support safer habits while research continued to explore whether prolonged mobile phone use could contribute

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