About 10 million people use online text chatting and 1 million use video chatting in Korea, says Chun Doo Bae, president of CXP, Korea's largest video chat service.

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Also consider limiting other sedentary activities, such as text messaging or chatting on the phone.

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We still see them often, and yes, we continue to parent them, whether it's having Skype discussions, chatting with them via text messages or phone calls.

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