Properly performed, both inhalation and exhalation should be complete, and the process repeated ten to twenty times without pausing between cycles (with a prolonged full pause but no empty pause), and with continuous voluntary control over one's muscles to assure smooth, soundless breathing at all times. One should employ both the "chin lock" (jalandhara bandha) and diaphragm raising (uddiyana bandha); he may use the lips and palate and glottis closures also if he chooses. Although one should never hold his breath to produce undue strain, still he is expected to feel, sooner or later, a pressure all over his body, from head to toes, or from the roots of his hair to the tips of his toenails, with perspiration oozing from his pores. Climatic conditions and amount of surplus water in one's body may have some bearing upon the result. But repetition of this exercise may enable one to continue it, after much practice, to as many as eighty repetitions in a series without discomfort.