Two new studies show the effects of smoking lingering in the body long after smokers kick the habit.
The first study found smokers were two times more likely to have dysfunctional pancreatic cells which could lead to cancer.
A second study of 2,500 men and women found former smokers had an increased risk for cancerous polyps in their colon.
Women who quit six to ten years before their colonoscopy still had an increased risk for the disease, but men did not.
Researchers say this suggests the negative effects of smoking may last longer in women.