What kind of changes can occur in a diver's body during rapid descent?

During rapid descent, a diver experiences increased pressure as they go deeper underwater. This increased pressure can lead to nitrogen narcosis, a condition caused by the effects of nitrogen at higher partial pressures. As a diver descends quickly, the nitrogen that is normally dissolved in the body fluids can become more concentrated, affecting the central nervous system and resulting in symptoms similar to intoxication, such as impaired judgment and reduced motor skills.

This physiological response is a critical consideration for divers as it emphasizes the importance of controlling the rate of descent to avoid the risks associated with nitrogen narcosis. Being aware of this phenomenon helps divers plan their dives better, ensuring they adhere to safe ascent and descent rates, thereby minimizing the potential for serious complications related to the effects of pressure on gas bubbles in the body.