The primary function of the lungs involving the transfer of oxygen from inhaled air into the blood and the transfer of carbon dioxide from the blood into the exhaled air.
Answer:A person whose body can no longer keep up with the demands of stress is in the exhaustion stage. At this point, there is not much this person can do anymore, and has to go and have a rest, or else there may be serious repercussions when it comes to that person's health.
