Diseases Linked To Tobacco

Explanation
Smoking is a major risk factor for developing cancer, and all of the mentioned body parts are more susceptible to cancer in smokers. The chemicals in tobacco smoke can damage the cells in the lungs, leading to lung cancer. Smoking also increases the risk of developing mouth cancer, as the smoke and chemicals come into direct contact with the tissues in the mouth. Additionally, smoking is a known risk factor for pancreatic cancer, as the chemicals can affect the pancreas and increase the likelihood of cancerous growth. Therefore, all of the mentioned body parts are more vulnerable to cancer in smokers.

Explanation
Chronic bronchitis is a condition characterized by inflammation and narrowing of the airways due to excessive mucus production. This excess mucus blocks the airways, making it difficult for air to flow in and out of the lungs. Symptoms of chronic bronchitis include coughing, wheezing, and shortness of breath. It is often caused by long-term exposure to irritants such as cigarette smoke or air pollution.

Explanation
The question asks for examples of what cold and pneumonia are. The correct answer is "respiratory infections" because both cold and pneumonia are types of infections that affect the respiratory system. Cold is a viral infection that primarily affects the nose and throat, while pneumonia is an infection that causes inflammation in the air sacs of the lungs. Both conditions are classified as respiratory infections because they involve the respiratory system.

Explanation
Smoking robs the body of vitamin C, which is essential for maintaining a strong immune system. Vitamin C is known for its antioxidant properties and plays a crucial role in supporting immune function. Smoking damages the cells and tissues in the body, leading to increased oxidative stress. Vitamin C helps combat this oxidative stress and protects the immune system from damage. Therefore, smoking depletes the body's vitamin C levels, weakening the immune system and making it more susceptible to infections and illnesses.

Explanation
Emphysema is a condition that causes the air sacs in the lungs to become damaged. This damage occurs over time due to the breakdown of the walls of the air sacs, leading to larger and less efficient air spaces. As a result, the lungs lose their elasticity and ability to effectively exchange oxygen and carbon dioxide. This can cause shortness of breath, wheezing, and other respiratory symptoms. Bronchitis, respiratory infections, and asthma can also cause damage to the airways, but emphysema specifically affects the air sacs in the lungs.

Explanation
Asthma is a chronic inflammatory disease that affects the airways. It causes inflammation and narrowing of the airways, leading to symptoms such as wheezing, shortness of breath, chest tightness, and coughing. This condition is usually triggered by various factors such as allergies, exercise, cold air, and respiratory infections. While bronchitis and chronic coughing can also cause inflammation in the airways, asthma specifically refers to a chronic condition characterized by recurring episodes of airway inflammation and constriction. Respiratory infection, on the other hand, refers to an infection of the respiratory system and may or may not cause chronic inflammation of the airways.

Explanation
Emphysema is a disease that causes damage to the air sacs in the lungs, leading to difficulty in breathing. It is primarily caused by long-term exposure to cigarette smoke or other harmful substances. Emphysema is a chronic condition that progressively worsens over time and can eventually be fatal. It is estimated to cause around 100,000 deaths per year.

Explanation
Emphysema is a condition in which the air sacs in the lungs, known as alveoli, become damaged. This damage causes the air sacs to lose their elasticity, making it difficult for them to expand and contract properly during breathing. As a result, the affected individual may experience shortness of breath, wheezing, and a chronic cough. Emphysema is often caused by long-term exposure to irritants such as cigarette smoke, and it is commonly associated with chronic obstructive pulmonary disease (COPD).