How can a diver minimize the risk of nitrogen narcosis?

Minimizing the risk of nitrogen narcosis is effectively achieved by diving at shallower depths whenever possible. Nitrogen narcosis is a condition that occurs due to the increased partial pressure of nitrogen when diving deeper, leading to an anesthetic effect on the central nervous system. By choosing shallower dives, divers reduce the overall partial pressure of nitrogen in their breathing gas, which in turn lowers the likelihood of experiencing narcosis. This approach not only enhances safety but also allows divers to remain more alert and capable of responding to underwater challenges.

Other options either do not address the risk of nitrogen narcosis effectively or actually increase the risk. Using heavier equipment does not relate to nitrogen narcosis and may make dives more strenuous, while maximizing bottom time could prolong exposure to higher pressures, thereby increasing the chances of experiencing narcosis. Additionally, increasing dive depth directly raises the partial pressure of nitrogen, which is contrary to the goal of minimizing the effects of nitrogen narcosis.