Maintaining the body's acid-base balance is essential for proper functioning. In most people, a healthy blood pH is between 7.35 and 7.45. Anything lower indicates an excessive amount of acid in the blood, or acidosis. Many things can cause acidosis and there are multiple types to consider. The body is very sensitive to pH level. Because of this, it will use several processes to attempt to correct pH imbalances when they arise. The lungs and kidneys are the main organs that help maintain a healthy pH balance.
The acid-base balance requires a consistent level of carbon dioxide (CO2) in the blood. The body maintains this through a variety of intricate chemical processes. Essentially, too much CO2 in the blood increases acidity, leading to acidosis. The lungs remove CO2 from the body during exhalation and, by varying the respiratory rate, control how much CO2 is excreted. Acidosis can also be corrected by the kidneys, which facilitate the production of bicarbonate. This natural chemical is a buffer, helping to maintain a stable blood pH.
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