What is a non-physical cause of stress for divers?

The selection of lack of skill as a non-physical cause of stress for divers is insightful, as it highlights the psychological aspects of diving challenges. Stress can often arise from feelings of inadequacy or fear that stem from inadequate training or experience. When divers do not possess the necessary skills or confidence, they may feel overwhelmed or anxious in underwater situations, leading to mental or emotional stress. This type of stress is not directly related to physical factors, like the environment or equipment, but rather to the diver's perception of their abilities.

In contrast, clear water visibility and proper equipment are typically associated with more positive diving experiences and do not contribute to stress in a direct manner. Environmental hazards might introduce physical risks that could cause stress, but they are external factors rather than internal or psychological causes like lack of skill. Recognizing the impact of a divers' skill level on their mental state is crucial for ensuring safety and well-being while diving.