What is the definition of decompression sickness?

Decompression sickness, often referred to as "the bends," is specifically defined as a condition that arises from nitrogen bubbles forming in the body as a result of rapid ascent after a dive. When divers breathe compressed air at depth, nitrogen from the air dissolves into their body tissues. If a diver ascends too quickly, the reduction in pressure causes this dissolved nitrogen to come out of solution and form bubbles. These bubbles can lead to various symptoms and potentially serious health issues, affecting the joints, lungs, and even the brain.

This understanding is crucial for divers, as it emphasizes the importance of ascending slowly and adhering to prescribed safety stops to allow the body to safely eliminate excess nitrogen and avoid the development of this condition. Other options don't accurately capture the essence of decompression sickness; they refer to problems that are unrelated to the mechanism of nitrogen bubbles forming due to pressure changes.