How can nitrogen narcosis affect divers?

Nitrogen narcosis, often referred to as "the rapture of the deep," occurs when divers are exposed to increased levels of nitrogen at depths typically greater than 30 meters (100 feet). As divers descend, the partial pressure of nitrogen increases, which can have a narcotic effect akin to alcohol intoxication. This impairment can significantly affect critical functions such as judgment, coordination, and cognitive decision-making.

When divers experience nitrogen narcosis, they may exhibit confusion or a decreased ability to react effectively to emergency situations. This can lead to dangerous scenarios, especially since diving requires quick thinking and precise motor skills. Divers may overestimate their abilities or underestimate risks, which can result in poor decision-making that jeopardizes their safety and the safety of their dive team.

The correct response highlights the adverse effects of nitrogen narcosis on a diver's physical and mental capabilities, emphasizing the importance of understanding this phenomenon to ensure safe diving practices. Divers are trained to recognize these symptoms and to take preventative measures, such as ascending to shallower depths to mitigate the effects of narcosis if they are encountered.