What is asphyxiation and how can it occur in swimming?

Asphyxiation refers to a condition that arises from a lack of oxygen, which can lead to suffocation and ultimately unconsciousness or death if not addressed. In the context of swimming, asphyxiation can occur when a swimmer is submerged in water and unable to breathe due to either accidental submersion, inhalation of water, or other circumstances that prevent normal breathing. This lack of oxygen can happen quickly, highlighting the importance of supervising swimmers closely and ensuring they are aware of their surroundings.

Dehydration, overexertion, and swimming in cold water can lead to other serious health risks, but they do not directly involve the immediate lack of oxygen that characterizes asphyxiation. It is crucial for swim coaches to understand the dangers of asphyxiation to effectively prevent such incidents and respond appropriately if they occur.