What is breat?

Breath refers to the process of inhaling and exhaling air into and out of the lungs. It is a vital function necessary for life, as it provides the body with oxygen, which is needed for cellular respiration. Inhaled air contains about 21 percent oxygen, which is transported through the bloodstream to cells, where it is used to produce energy. During the process of respiration, the body also releases carbon dioxide, which is a waste product that is eliminated through exhalation. The rate and depth of breathing can be influenced by various factors such as physical exertion, stress, altitude, and certain medical conditions. Difficulty breathing or shortness of breath can indicate a health problem and should be evaluated by a medical professional.