KyŪsho - Vital Points: Vital Points based on Koppō Jutsu and Ninjutsu - Paperback

Kyūsho, in Kanji: 急所; literally means "Key Points". It is a set of techniques for manipulating pressure points (sensitive areas or vital points) on the human body, shared across various Japanese and Chinese martial arts styles, with the aim of neutralizing an attack by destabilizing the opponent or causing the loss of movement in a specific part of the body. It originated in traditional Chinese medicine with the emergence of acupuncture and is based on human anatomy.

Although "Pressure Points" don't exist as portrayed in movies, there are many sensitive areas in the body that can be used to one's advantage in combat. Striking a vulnerable area on the opponent's body can turn the fight in your favor by incapacitating, disarming, or gaining control over their body.