What problems does nitrogen cause in diving?

Nitrogen is an inert gas that becomes increasingly soluble in the body when divers descend to greater depths due to increased pressure. As the concentration of nitrogen in the bloodstream rises, it can lead to a condition known as "nitrogen narcosis," which can impair cognitive and motor functions. This phenomenon occurs because nitrogen affects the central nervous system and can produce symptoms similar to intoxication, such as confusion, reduced inhibitions, and impaired judgment.

This aspect of nitrogen's behavior is particularly important for divers because it can significantly affect their ability to make sound decisions while underwater, increasing the risk of accidents or unsafe diving practices. Understanding nitrogen narcosis is vital for safe diving practices, which is why it is recognized as a significant problem in diving scenarios.

The other options do not accurately reflect the effects of nitrogen in the context of diving. Nitrogen does not increase buoyancy, enhance visibility, or reduce thermal conductivity under diving conditions. Instead, it is primarily known for its potential to cause narcosis at certain depths, highlighting the importance of understanding the physiological effects of gases while diving.