What is the respiratory systems primary duty?

What is the main organ in the respiratory system?

What respiratory infection can be deadly to children, the elderly, and persons with chronic health problems such as diabetes, heart disease, or lung illness?

What might some people need if their condition has progressed significantly?

People who use alcohol or other drugs on a regular basis are more prone to infection.

Abstinence from drugs and/or alcohol can reverse changes triggered by continual drug abuse if you are committed to.

_________ has been suggested that 80 percent of individuals with copd developed the condition as a result of.

_________ can reduce many of the problems associated with lung cancer