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Advances in science, technology, and regulation have enabled society to reduce the adverse effects of continuing with potentially harmful behavior

This creates a nicotine-containing tobacco aerosol without any fire or ash and less smoke smell

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Chronic obstructive pulmonary disease Chronic obstructive pulmonary disease (COPD), which is characterized by persistent respiratory symptoms and airflow limitation, is a chronic inflammatory disease

Studies have suggested that blood sugar can be difficult to control in people who had quit smoking due to an increase in weight and waist circumference as this contributes to insulin resistance [7]