In general, how can a diver best avoid decompression sickness?

Ascending slowly is the most effective way for a diver to avoid decompression sickness. When a diver ascends, the pressure around them decreases, and nitrogen that has been absorbed into the body's tissues needs to be released back into the bloodstream and exhaled safely. If a diver ascends too quickly, the nitrogen can come out of solution too rapidly, forming bubbles that lead to decompression sickness, or "the bends."

A slow ascent gives the body the necessary time to exhale nitrogen gradually and reduces the risk of bubble formation. This physiological process is crucial for a safe dive, which is why the practice of slow ascent is emphasized in diving safety protocols.

Using enriched air can improve nitrogen management during dives and extend bottom times, but it does not replace the need for a slow ascent. Maintaining high buoyancy is important for control during dives, but buoyancy itself does not directly prevent decompression sickness. Staying at depth longer increases exposure to pressure, potentially allowing for higher nitrogen saturation, making decompression sickness more likely if a safe ascent is not practiced.