Linda Stone asks:

"How widespread is email apnea? I observed others on computers and BlackBerries: in their offices, their homes, at cafes. The vast majority of people held their breath, or breathed very shallowly, especially when responding to email. I watched people on cell phones, talking and walking, and noticed that most were mouth-breathing and hyperventilating. Consider also, that for many, posture while seated at a computer can contribute to restricted breathing."

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