Asthma is an illness characterized by episodes of breathing difficulty, accompanied with the sensation of suffocation due to the restricted respiratory tract inside the lungs. It also causes a frequent violent cough as the body tries to remove the mucous accumulated in the lungs.
The construction of the respiratory tracts is caused by three main factors:
The bronchial muscle next to each tube contracts causing a stifling or spasm and the inability to breathe deeply and easily.
Accumulation of mucous in the bronchial tube.
Inflammation of the mucous membrane in the bronchial tube or a combination of the three.
Symptoms: Tightness in the chest, cough and periodic bouts with breathing difficulty. In more serious cases inhalers and extra oxygen are necessary to assist breathing.
Causes: Allergies, air pollution, respiratory infections, stress or anxiety producing spasms of the muscles that surround the bronchi and not allowing air to enter the lungs.