Even Occasional Smoking Harms Arteries

Even occasional cigarette smoking can impair the functioning of your arteries, according to a new University of Georgia study that used ultrasound to measure how the arteries of young, healthy adults respond to changes in blood flow.


“Most people know that if they have a cigarette or two over the weekend that it’s not good for their arteries,” said study co-author Kevin McCully, a professor of kinesiology in the UGA College of Education, “but what they may not be aware of—and what our study shows—is that the decrease in function persists into the next week, if not longer.”


Previous studies have shown reductions in the arterial health of people who smoke regularly, McCully said, but what’s surprising about his finding is that the study subjects were occasional smokers (less than a pack a week) who had not smoked for at least two days before their ultrasound. The study, which appears in the early online edition of the journal Ultrasound in Medicine and Biology, found that the arteries of occasional smokers were 36 percent less responsive to changes in blood flow than non-smokers. ....More

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