Knowing how to react immediately and perform first aid (such as stopping severe external hemorrhaging) is essential to preserving a life in an emergency situation.

noli's read

The importance of intervening quickly when faced with major bleeding is solidly validated by emergency science. According to the recommendations of the American Heart Association and the Red Cross (an expert consensus based on observational studies), direct, continuous pressure on the wound is the most effective initial action to stop the flow. Furthermore, an observational study on the international "Stop the Bleed" program, published in the Journal of the American College of Surgeons, confirms that training citizens in these simple actions significantly reduces mortality during domestic or traffic accidents. The use of a tourniquet for limbs, formerly reserved for professionals, is now strongly recommended by these same bodies if direct pressure fails. Preparing one's mind to react calmly and technically when faced with the unexpected is therefore an essential pillar of everyday safety and prevention.

the sources

No named source held this one up — that absence is part of the verdict.