Jalandhara Bandha is added during the practice of retention, in those Yoga breathing techniques that require it. It eliminates any possible negative side effects generated by retention in the neck and head areas; it reduces the internal pressure of the chest during holding the breath and slows down the heartbeat; stabilizes Prāna Vāyu and stops its ascendant movement, favouring contact with Apana Vāyu; it acts as a balancer on the Chakra of the Throat and on the organs and functions connected to it.