What occurs when a drowning person attempts to breathe?

When a drowning person attempts to breathe, they often involuntarily inhale water instead of air due to the body's instinctive reaction to the lack of oxygen. This involuntary action occurs as the person gasps for air when their airway is submerged, leading to the inhalation of water into the lungs. This can result in water being rapidly drawn into the respiratory system, contributing to a critical situation.

Swallowing large amounts of water can also occur during drowning, but it's important to note that the most immediate and dangerous action taken by a drowning individual struggling for air is to inhale. This act can severely compromise lung function and exacerbate the drowning process. Understanding this physiological response is crucial in recognizing the signs of drowning and the urgency needed in such emergencies.