Smoking cigarettes may cause Crohn's disease: Exposure to tobacco causes a reaction that triggers inflammation in the bowel, study finds

Smoking cigarettes may cause Crohn's disease, a new study confirms.
For the first time, researchers found exposure to chemicals in tobacco may increase the risk of developing the agonising condition.
South Korean scientists discovered mice who inhaled cigarette smoke showed signs of intestinal inflammation - a sign of Crohn's disease.
Cigarette smoking activates specific white blood cells in the lung, which might later move to the colon, triggering bowel inflammation, they found.
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