What does normal breathing appear like during a dive?

Normal breathing during a dive is characterized by slow, steady inhalation followed by a slow, steady exhalation. This pattern is essential for divers as it helps to maintain calmness and stability, reducing the risk of hyperventilation or other respiratory issues that can arise from rapid or shallow breathing. Such a controlled breath pattern is also beneficial for maximizing the efficiency of gas exchange in the lungs, which is critical when underwater where divers must conserve oxygen and manage carbon dioxide levels effectively.

In contrast, rapid or shallow breathing can lead to an increased heart rate and anxiety, making it harder for a diver to concentrate and stay relaxed. It can also increase the risk of air embolism or other complications due to the rapid changes in pressure. Therefore, understanding the importance of maintaining a slow, steady breathing pattern is crucial for safe diving practices.