What does nitrogen absorption during a dive primarily affect?

Nitrogen absorption during a dive primarily affects the diver's physical condition post-dive. As divers go underwater, they breathe in air that contains compressed nitrogen. Under increased pressure, a diver's body absorbs more nitrogen than it would at the surface. When the diver ascends to the surface, the pressure decreases, and this absorbed nitrogen can form bubbles in the body if not properly released, leading to potential decompression sickness, also known as "the bends."

This physiological implication emphasizes the importance of monitoring dive profiles and adhering to ascent rates and safety stops to allow the body to off-gas nitrogen safely. Thus, understanding and managing nitrogen absorption is crucial for ensuring divers' health and safety after a dive.