Lung cancer

1. Symptoms

1.1. Coughing up blood

1.2. Pain in the ribs

1.3. Fatigue

1.4. Weight loss

1.5. Weakness

1.6. Shortness of  breath

1.6.1. Wheezing

2. Causes

2.1. Chemicals in the air

2.2. Diet and exercise

2.3. Heredity

3. Prevention

3.1. Eat healthy

3.2. Exercise

3.3. Go to the doctor and get checkups

4. Treatments

4.1. Chemo

4.2. Medicine

4.3. Surgery