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Why don the tar and nicotine numbers accurately reflect the actual amounts that smokers inhale?

April 26, 2017accurately actual amounts inhale nicotine Numbers reflect smokers tar

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Why don the tar and nicotine numbers accurately reflect the actual amounts that smokers inhale?

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First, smokers (unlike machines) may inhale more deeply; take larger, more rapid, or frequent puffs; or smoke a few extra cigarettes each day. So, smokers may end up inhaling more tar, nicotine, and other harmful chemicals than the machine-based numbers suggest.