In this episode, we explore the cognitive effects of cold water on divers, balancing our understanding of temperature's impact with last week's discussion on heat. While physiological effects of cold water, like decompression sickness, are well-documented, the cognitive implications are less known but equally important, particularly for divers in cold conditions. Studies reveal that besides feeling colder with repeat dives, divers experience symptoms like de-personalization, reduced concentration, and memory lapses, impacting their ability to execute essential tasks underwater. Despite potential improvements with acclimatization, divers must consider these cognitive effects, especially during task-loaded dives or repetitive immersions. Mitigation strategies include wearing appropriate insulation, limiting dive times, and actively warming up between dives, emphasizing the importance of planning and preparation for cold-water diving excursions.

Original blog: https://www.thehumandiver.com/blog/brrrr-cold-water-and-the-effects-on-our-brain

Links:

1968 study: https://journals.sagepub.com/doi/10.1177/001872086801000501

2019 study: https://www.sciencedirect.com/science/article/abs/pii/S0006899319302331?via%3Dihub

Tags:

 English, Decision Making, Fatigue, Jenny Lord, Performance Shaping Factors, Situation Awareness