EVERYDAY SCIENCE

Detailed explanation-1: -Bronchitis is an inflammation of the lining of your bronchial tubes, which carry air to and from your lungs. People who have bronchitis often cough up thickened mucus, which can be discolored. Bronchitis may be either acute or chronic.

Detailed explanation-2: -Bronchitis happens when a virus, bacteria, or irritant particles trigger an inflammation of the bronchial tubes. Smoking is a key risk factor, but nonsmokers can also develop bronchitis.

Detailed explanation-3: -What Causes Bronchiolitis? Respiratory syncytial virus (RSV) is the most common cause of bronchiolitis. Sometimes, the common cold and the flu also can cause it.

Detailed explanation-4: -Bronchitis is when the airways leading to your lungs (trachea and bronchi) get inflamed and fill with mucus. You get a nagging cough as your body tries to get rid of the mucus. Your cough can last two or more weeks. Acute bronchitis is usually caused by a virus and goes away on its own.

Detailed explanation-5: -In bronchitis, cells that line the bronchi become infected. The infection usually starts in the nose or throat and travels to the bronchial tubes. When the body tries to fight the infection, it causes the bronchial tubes to swell. This causes you to cough.