What are the effects of nitrogen narcosis at depth?

Nitrogen narcosis, also known as "the Martini effect," occurs when divers descend to significant depths, leading to an increase in the partial pressure of nitrogen in the body. This condition results in an alteration of mental state and can significantly impair judgment and cognitive function.

As a diver descends, the increased pressure affects the central nervous system, which can lead to symptoms such as confusion, euphoria, and impaired decision-making skills. The deeper the dive, the more severe these effects can become, which may lead to dangerous situations if divers are not aware of their condition. Understanding the effects of nitrogen narcosis is crucial for safe diving practices, as it informs divers about the signs to watch for and the importance of adhering to dive plans and depth limits.