What are the effects of hypercapnia in divers?

The selection identifies that hypercapnia, which is an elevated level of carbon dioxide (CO2) in the bloodstream, can lead to confusion and potentially unconsciousness. This is due to the physiological effects of excessive CO2, which can disrupt the body’s acid-base balance and impair normal brain function.

When divers breathe in a higher concentration of CO2, whether from other environmental factors, poor ventilation, or high levels of activity, it can lead to symptoms like confusion, drowsiness, and in severe cases, loss of consciousness. The body requires a balance of oxygen and carbon dioxide; when this is disturbed, it impacts the brain and central nervous system, leading to cognitive impairments and, if not addressed, can be life-threatening.

Understanding hypercapnia is crucial for divers, as avoiding elevated CO2 levels contributes to safer diving conditions and better overall cognitive function while underwater.