When performing first aid on a bleeding wound, why is applying pressure important?

Applying pressure to a bleeding wound is crucial because it directly helps to stop the bleeding. When pressure is applied to a wound, it helps to constrict the blood vessels at the site of injury. This mechanical action can promote clotting and slow or stop the flow of blood, which is vital in preventing excessive blood loss. Stopping the bleeding is the primary goal in first aid, as uncontrolled bleeding can lead to shock and other serious complications. Effectively managing bleeding through pressure is a foundational aspect of first aid and is critical in stabilizing the injured person before more advanced medical care is available.