Isshin-ryu is a traditional style of karate that originated in Okinawa, Japan, in the mid-20th century. Founded by Tatsuo Shimabuku, it combines elements of Shuri-te and Naha-te styles, emphasizing practical self-defense techniques and a strong focus on body mechanics. The name "Isshin-ryu" translates to "one heart style," reflecting its philosophy of unity in mind and body. Practitioners learn various techniques, including strikes, blocks, and kata (forms), while also developing physical fitness and mental discipline. The style is known for its straightforward approach and effectiveness in real-life situations.