What occurs when gases separate out of solution in a diver?

When gases separate out of solution in a diver, they create air bubbles. This phenomenon is commonly associated with decompression sickness, also known as "the bends." As a diver ascends, the pressure decreases, and dissolved gases in the body, primarily nitrogen, can come out of solution and form bubbles. This process can occur if a diver ascends too quickly or does not adhere to the recommended safety stops during ascent.

The formation of air bubbles can cause various issues, including blockages in blood vessels, which can lead to pain, disability, or even life-threatening situations. Understanding this principle is crucial for divers to ensure safe diving practices and to mitigate the risks associated with gas embolism.