Table of Contents I. Asthma Worldwide II. Asthma & the Respiratory System III. Asthma Symptoms IV. Diagnosing Asthma a. Asthma Classifications V. Treatments for Asthma  Asthma Worldwide Asthma is one of the most common chronic diseases in the world. This disease cannot be passed from person to person and is often inherited from genetics or developed due to environmental or lifestyle factors. As of 2016, the World Health Organization reports that 340 million people have asthma