Whether we're awake or asleep, we don't have to think about breathing - it's so vital to life that it happens automatically. All of this breathing couldn't happen without help from the respiratory system, which includes the nose, throat, voice box, windpipe, and lungs. Respiration is the set of events that results in the exchange of oxygen from the environment and carbon dioxide from the body's cells. The process of taking air into the lungs is called inspiration, or inhalation, and the process of breathing it out is called expiration, or exhalation. Our chest & lungs help us to breathe properly and this section provides you information for proper care of your lungs.