What are the signs of nitrogen narcosis?

Nitrogen narcosis is characterized by a set of specific signs and symptoms that correlate with the effects of increased nitrogen in the bloodstream due to deeper diving. The feelings of impaired judgment and euphoria, along with a sensation similar to inebriation, are typically experienced by divers at greater depths. This condition is often referred to as "the rapture of the deep" and occurs because nitrogen behaves as a narcotic under higher pressure, impacting the central nervous system.

Divers experiencing nitrogen narcosis may exhibit poor decision-making capabilities, a false sense of well-being or invincibility, and might underestimate risks, all of which can lead to dangerous situations. Understanding these signs is crucial for divers, as they can help recognize the onset of narcosis and take appropriate action, such as ascending to shallower depths to alleviate symptoms. The other options listed describe symptoms that do not directly correlate with nitrogen narcosis or fail to accurately encapsulate its specific effects.