The body is made up of millions of cells of different types sizes and functions. These are divided forming tissues and organs. When cells age or suffer some damage, they die and are replaced by new ones.
Lung cancer is the second most common cancer in men and women behind prostate cancer and breast cancer respectively. Lung cancer is the leading cause of death from cancer worldwide. Every year, more people die from lung cancer than from cancers of the colon, breast, and prostate combined. Lung disease refers to several types of diseases or disorders that prevent the lungs from functioning properly. Lung disease can affect respiratory function, or the ability to breathe, and pulmonary function, which is how well lungs work. Chronic lower respiratory diseases is a set of conditions that includes chronic obstructive pulmonary disease (COPD), emphysema, and chronic bronchitis. Together, chronic lower respiratory diseases are a leading cause of death.
