What condition does the term "decompression sickness" refer to?

Decompression sickness, commonly known as "the bends," is a condition that occurs when a diver ascends too quickly after spending time at depths where the pressure is significantly higher than at the surface. During a dive, the body absorbs more nitrogen from the air due to the increased pressure. If a diver ascends too rapidly, the pressure decreases suddenly and can cause the dissolved nitrogen to form bubbles in the body, which can lead to a range of symptoms depending on where these bubbles cause problems. This phenomenon is linked directly to the gas laws that explain how gases behave under pressure, particularly Henry's Law.

Understanding the implications of nitrogen absorption during deep dives is crucial for divers to prevent this serious condition, which can affect the joints, nerves, and even the lungs if not managed properly. Appropriate ascent rates, safety stops at shallow depths, and following dive tables or computers are essential practices to mitigate the risks of decompression sickness.