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1. Nomophobia is the fear of being without a mobile phone or unable to use it. It was added to the Oxford English Dictionary in 2018. 2. The document discusses the history and development of mobile phones and telephone technology from early devices like radios to modern smartphones. Key inventors and innovations are mentioned like Alexander Graham Bell, Thomas Edison, and the transition between different telephone exchange systems. 3. Health issues related to excessive mobile phone use are briefly covered such as digital eye strain, blue light exposure, and increased risk of age-related macular degeneration. Potential treatments for nomophobia like cognitive behavioral therapy are also noted.
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