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Asthma Attacks: An Overview

Asthma is a chronic inflammatory disorder of the bronchial tubes, the passages which carry air into the lungs. Asthma affects as many as 300 million people around the world, including about 6 million children in the United States. In this video, Jane Hanson and a team of medical experts explore asthma, its symptoms , as well as the triggers that cause asthma attacks.