The high frequency of zhi tone in younger females implies that regulating the small intestine meridian of hand - taiyang and heart meridian of hand - shaoyin may be beneficial to the health maintenance of younger female 此外，年轻女性发徵音增多，徵音对应于心，提示调理与心相关的手太阳小肠经和手少阴心经可能对年轻女性的健康有所帮助。
