It is commonly referred to as breathing. It is the process of air flowing into the lungs during inspiration (inhalation) and out of the lungs during expiration (exhalation). Air flows because of pressure differences between the atmosphere and the gases inside the lungs.
A. Analgesics. Tylenol can cause liver failure. Aspirin can cause bleeding disorders and gastric ulcers. Narcotic analgesics can cause addiction and overdoses leading to death.
