Jalandhara Bandha, or throat lock, prevents prana from escaping the upper body by pressing the chin to the collarbone while inhaling and holding the breath. Practicing the throat lock provides benefits like alleviating throat diseases, improving prana in the thoracic region, and binding the subtle energy channels. When held, it exerts pressure on major nerve fibers in the neck, restricting nervous impulses to the brain and helping activate higher brain centers related to creativity and intellect when released.