# Stun Whenever a player or [[monster]] takes [[damage]] from a [[hit]], there is a chance they will be stunned. A **stun** interrupts whatever that creature was doing while a brief animation is played. Neither [[damage over time]] nor [reflect](Damage_reflection) can cause stun. ## Mechanics The chance to stun is based off the damage done in a single hit compared to the target's maximum [[life]]. The default length of stuns is **350ms**.[2] A significantly long stun duration (**700+ ms**) will also display a swirling circle above the character or monster. The duration of stuns can be altered by <span class="explicitMod">increased Block and Stun Recovery, increased Stun Duration on enemies, increased Stun Duration with Two Handed Melee Weapons on enemies</span> and similar modifiers. Stun duration can be calculated using the following formula:  Whether or not a stun occurs can be calculated using the following formula:  Where <img src="https://i.imgur.com/Ab28zjy.png" width="200"> in equation is what the maximum life of the creature would be in a single-player map. Increases to monster life from a party of more than one player do not affect <img src="https://i.imgur.com/Ab28zjy.png" width="200">. For a player with Chaos Inoculation, their <img src="https://i.imgur.com/Ab28zjy.png" width="200"> is whatever their maximum life would be if they did not have Chaos Inoculation. If the chance to stun would be less than or equal to 20%, it is ignored, so you need to deal more than 10% of effective maximum life to have a chance to stun. Dealing at least 50% of maximum life will always stun. Melee damage have a +25% bonus to stun chance and non-physical damage have a -25% penalty to stun chance. Both of these will cancel each other out. Therefore, Damage can be calculated as the following: <pre>  </pre> ### Stun threshold Reduced stun threshold modifiers reduce the value of <img src="https://i.imgur.com/Ab28zjy.png" width="200">. For example, <span class="explicitMod">25% reduced Enemy Stun Threshold</span> means the enemy will be treated as if their <img src="https://i.imgur.com/Ab28zjy.png" width="200"> is only 75% as much as it actually is, increasing the chance that the enemy will be stunned. When the total Stun Threshold Reduction would be over 75%, it is instead treated as being:  The net effect on the mean number of stuns during a monster's lifetime is as follows: - Hyperbolic regime: From 0 to 75% Reduced Stun Threshold, the mean number of stuns per lifetime increases from 2 to 8, accelerating as it goes. - Linear regime: Every 3.125% Reduced Stun Threshold past 75% increases the mean number of stuns per lifetime by 1. <details> <summary><center><b>Example</b></center></summary> If a player has a total of <span class="explicitMod">110% reduced Enemy Stun Threshold</span> from gear and skills, the actual value according to equation that gets used would be: </details>