What effect does carbon dioxide buildup have on a diver?

The buildup of carbon dioxide in a diver's system can significantly impact physiological and cognitive functions. When carbon dioxide levels rise, the body can enter a state of respiratory acidosis, which occurs when there is an excess of carbon dioxide that leads to a decrease in blood pH. This shift in pH can disrupt normal metabolic processes and impair the body's ability to function effectively.

As carbon dioxide concentrations in the blood increase, the diver may experience symptoms such as confusion, dizziness, and impaired cognitive function due to the brain's sensitivity to changes in pH and oxygen levels. This can lead to difficulties in decision-making and motor skills, which are critical for safe diving practices. Thus, the correct understanding of this phenomenon is crucial for divers to maintain awareness of their physical state and respond appropriately to environmental changes while underwater.