Three hours is the critical time frame a person can survive when exposed to an extreme environment without an adequate form of protection. Immediately stop the bleeding (apply a tourniquet or plug the source of bleed)ģ Hours Exposed to Extreme Weather Conditions.Leave the room, seek a well-ventilated area.Remove airway obstruction, and perform CPR.Hypothermia reduces blood flow to the brain or can stop the heart.īy identifying these causes, proper intervention can be duly applied in hopes of preventing permanent brain damage.Massive blood loss reduces blood pressure, subsequently reducing the blood supply (and oxygen supply) to the brain.Displacement of breathable oxygen in the environment such as in the case of carbon monoxide accumulation, or lack of breathable oxygen due to thick smoke in case of a fire.Any injury that prevents a person from spontaneously breathing (airway obstruction, neck injury).What this means is that any form of oxygen interruption to the brain will lead to injury. Longer than this results in irreversible brain damage, permanent disability, or death. Reversible brain damage can occur within 3 minutes of complete lack of oxygen. 3 Minutes Without AirĪmong the organs, the brain is the most sensitive to oxygen deprivation and is the first organ to fail in an event that there is no access to air. One must always stay calm and vigilant to be able to quickly assess the situation and react promptly. Through quick thinking and prior knowledge, one should already be on the move towards getting outside to open space, or under a sturdy table, once the quaking starts to get stronger. Failure to do so will lead to missed opportunities.įor example, in the event of an earthquake, the tremor starts weak and then advances to stronger quakes. A person in a life-threatening situation has 3 seconds to react or make a life-saving decision. Perhaps the most important task to prevent injury, and leads to better survival is the recognition that something wrong is happening. Hierarchy of Rule of 3s 3 Seconds to React It is easy to memorize, and extremely useful. There is no downside to learning the rule of 3s. In general, failure to address a higher-ranking rule will result in a faster death. How high a rule ranks in the list depicts the gravity of its importance. The rule of 3s is arranged based on the priority of the needed task to accomplish during a crisis. 3 hours exposed to extreme weather conditions.It defines how long an average person can survive without a certain resource, or how much time is needed to make a life-saving decision. The rule of 3s is a set of pointers that can be used as a guide to assess survivability and the course of actions that needs to be prioritized during a crisis. Aside from carrying some supplies in anticipation of such events, a prepper’s knowledge is an essential resource that will increase their likelihood of survival. A life-changing crisis can happen anywhere, at any time, to anyone.