Shock

In DayZ Standalone the Shock stat is a representation of the amount of trauma your character's body has sustained in a short period of time.

Players regain from Shock in a few ways: when they sustain certain injuries (e.g. gunshot wound, attack Infected), from certain illnesses or when they lose too much Blood. Sustaining severe Shock will cause a character to fall unconscious for a period of time.

Shock naturally regenerates on its own at a relatively quick pace. Still, there are medical treatments available should a Survivor suffer from Shock.

Overview
Shock, a core stat in DayZ Standalone, is more abstract that the other three core stats. Rather than representing a direct facet of a character's state, Shock instead represents the amount of trauma (and ensuing circulatory issues) a character's body has received in a short period of time. While not exactly the same as its real life counterpart [|Circulatory Shock], the underlying causes are similar.

In DayZ Standalone, loss of Shock is cause by certain injuries, a drop in blood pressure due to too much Blood loss or suffering from a Heart Attack.

Being a more abstract stat, Shock has no UI or visual indicator. Suffer too much trauma or lose too much Blood, too quickly and your character will simply fall unconsciousness for a period of time (determined by the cause). This makes Shock the hardest of the core stats to manage as you simply do not know, even approximately, what your Shock level is after suffering an injury.

While falling unconscious definitely leaves a Survivor vulnerable, it is not necessarily a death sentence. Relative to both Blood and Health, Shock regenerates rather quickly, even when unconscious. As long as a character's wounds aren't too serious or they have been bandaged, the character will regain consciousness within a couple of minutes. Additionally, the use of an Epinephrine Auto-Injector will instantly restore a character's Shock value back to its maximum value allowing them to regain consciousness. Alternatively, another Survivor can perform CPR on an unconscious character, speeding up their Shock recovery and allowing them to regain consciousness much faster.

Losing Shock
Much like Health and Blood, whenever a character sustains an injury they lose Shock. Dropping below 25 Shock will cause unconsciousness, so caution is advised whenever a character is injured. If possible, it is recommended a player wait for a minute or two after being injured to allow their Shock level to recover.

Injury
Below is a list of injuries and their associated average Shock damage.

*Values are approximate averages and depend on several other factors

Blood Loss
See Also: Blood Loss

Representing a drop in blood pressure, going below 3,000 Blood will cause a character to begin taking Shock damage every second until they regain enough Blood.

Heart Attack
Main Article: Heart Attack

Representing a sudden change in blood pressure and decreased blood flow across the body, a Heart Attack causes a character to take Shock damage every second until they fall unconscious, at which point they being to take Health damage.

Fracture
Main Article: Fracture

Representing a fracture from falling from a high building/rock or falling multiple times in a short interval

Unconsciousness
Main Article: Unconsciousness

Losing consciousness is a direct result of taking 75 or more Shock damage in a short period of time. Once unconscious, a character left alone will regain consciousness once they have recovered enough Shock (assuming they have the appropriate Blood level).

Treatment & Recovery
Unlike Health & Blood, Shock regenerates relatively quickly and, with one exception, all of the time. Taking Shock damage will stop the regeneration effect for approximately 15 seconds. Regeneration speed is affected by the character's state of consciousness; with slower regeneration occuring while a character is unconscious.

As an alternative to natural regeneration, there are two medical treatments that can be performed on Survivors to assist them in recovering Shock. The first, an Epinephrine Auto-Injector, can be used by the character themself or on another survivor, conscious or unconscious, to instantly restore 100 Shock. The second, CPR, can only be performed by a survivor on another unconscious survivor and restores ~2.5 Shock per second. Either method will help a survivor to regain Shock much faster than they would otherwise.

Trivia

 * Before 0.63, players started with 0 Shock and gained instead of lost Shock whenever they became injured.