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Nicotine constricts blood vessels, raises heart rate and blood pressure, and puts extra strain on the cardiovascular system, says Tory Spindle, PhD, an associate professor at Johns Hopkins who studies the behavioral pharmacology of nicotine and tobacco

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Smokers cost the healthcare system a great deal of money ($170 billion a year, and 8.7% of all spending in the U.S.), and cigarette taxes make those who choose to smoke pay their fair share

However, the survey also revealed that the likelihood of smokers believing that their tobacco product was more harmful than the previous year had decreased following the introduction of plain cigarette packs from 15% to 11%