A new study finds that cultivation and enrichment of microbes on the face can infiltrate the lungs through unconscious aspirations and cause inflammatory responses and advanced stage lung cancer. The nose and the mouth were designed to take in oxygen without strain, uninhibited. The oxygen travels down the trachea and splits off into two tubes called the bronchi. From there, the oxygen travels down a series of bronchioles until it reaches the alveoli, which are tiny air sacs covered with blood vessels. These air sacs take the oxygen directly to the heart, where it is dispersed throughout the body. When...