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Patients with chronic obstructive pulmonary disease (COPD) who abstained from smoking or substantially reduced their cigarette consumption by switching to heated tobacco products (HTPs) showed consistent improvements in respiratory symptoms, exercise tolerance, quality of life, and rate of disease exacerbations. This was the key finding of a groundbreaking study by a team of Italian researchers published in March 2021 in the scientific journal Internal and Emergency Medicine. It is the first-ever study to describe the long-term health effects of HTP use in COPD patients.