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Smoking 1 cigarette stiffens arteries

October 28, 2009 12:00:00 AM PDT
New research shows smoking just one cigarette increases the stiffness of the arteries.Researchers performed the study with young and otherwise healthy adults between 18 and 30 years old. When the arteries stiffen, it makes the heart work harder, especially during physical activity.

The doctor who led the research says after time, the damage worsens and is irreversible.