Jujutsu is a traditional Japanese martial art that focuses on using an opponent's energy and movements against them. It emphasizes techniques such as joint locks, throws, and grappling, allowing a smaller or weaker person to defend themselves effectively. Jujutsu practitioners learn to remain calm and adaptable in confrontational situations. Originating in the samurai era, Jujutsu was developed for unarmed combat and self-defense. It laid the groundwork for various modern martial arts, including Judo and Brazilian Jiu-Jitsu. Today, it is practiced worldwide, both as a means of self-defense and as a competitive sport.