What is a common method to ensure safety when decompression sickness is a concern?

Observing waiting times after diving is a critical method for ensuring safety regarding decompression sickness, often referred to as "the bends." When a diver ascends to the surface too quickly, nitrogen gas that has been absorbed by the body under pressure can form bubbles, leading to various physiological issues.

By adhering to recommended waiting times, also known as "surface intervals," divers allow their bodies sufficient time to off-gas nitrogen safely. These intervals are calculated based on the depth and duration of the dive, as well as the type of diving conducted, and they are essential to minimize the risk of developing decompression sickness post-dive.

The other strategies listed, while they may contribute to overall diving safety, do not directly target the prevention of decompression sickness as effectively as managing ascent and waiting times does. Therefore, observing appropriate waiting periods is a crucial and widely recommended practice in diving safety protocols.