A head harness is a fitness accessory used to strengthen neck muscles and improve neck stability. Typically made of durable materials like nylon or leather, it consists of straps that wrap around the head, with attachments for weights or resistance bands. Head harnesses are commonly used in neck strengthening exercises, such as neck flexion and extension, resistance training, and rehabilitation. By targeting the neck muscles, including the sternocleidomastoid and trapezius muscles, head harnesses help prevent neck injuries, improve posture, and enhance overall athletic performance, particularly in sports like wrestling, football, and martial arts where neck strength is crucial.