Pressure points are specific areas on the body where applying pressure can cause pain, discomfort, or even unconsciousness. While some pressure points are more sensitive than others, all pressure points have the potential to be used for self-defense or to subdue an attacker.
There are a number of different pressure points that can be used to knock someone out, but some of the most common include the carotid sinus, the vagus nerve, and the brachial plexus. The carotid sinus is located on either side of the neck, just below the jawbone. Applying pressure to the carotid sinus can slow the heart rate and cause fainting. The vagus nerve is located in the neck and chest. Applying pressure to the vagus nerve can cause nausea, vomiting, and dizziness. The brachial plexus is located in the armpit. Applying pressure to the brachial plexus can cause pain, numbness, and paralysis in the arm.