Smoking[/size] causes cancer, heart disease, stroke, lung diseases, diabetes, and chronic obstructive pulmonary disease (COPD), which includes emphysema and chronic bronchitis. [/color][/size]Smoking[/color][/size] also increases risk for tuberculosis, certain eye diseases, and problems of [/color][/size]the[/color][/size] immune system, including rheumatoid arthritis.[/color]