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Many studies that conclude smokers have a lower blood pressure are regarded as a paradox, because nicotine has sympathomimetic and vasoconstriction effects which should result in higher blood pressure and increased heart rate

Although cigarette smoking rates have consistently declined since 1965, the recent popularity among consumers of electronic nicotine delivery systems (ENDS) may disrupt this trend

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If you can, spend a little more on a top-of-the-line device if you know you'll be puffing a lot