Self-defense is the act of defending oneself against physical harm or attack. It can involve physical techniques such as blocking, striking with the hands, feet, arms or legs, or using a physical weapon such as a gun, knife, or baton. It can also involve non-physical techniques such as verbal assertiveness and psychological techniques such as negotiation or de-escalation. There are various types of self-defense, including martial arts, boxing, kickboxing, KAV MAGA, jujitsu, judo, aikido, and karate. Each of these self-defense techniques has its own specific principles and techniques to help an individual protect themselves effectively. Additionally, some self-defense courses may incorporate elements of multiple disciplines to provide a comprehensive self-defense system.