Concern: the mysteries of the life cycle of men and women 关注：男女生命周期的奥秘

《黄帝内经》上讲：
　　女子七岁。肾气盛，齿更发长；　　　　　　　　　　　　 (7岁)
　　二七而天癸至，任脉通，太冲脉盛，月事以时下，故有子；(14岁)
　　三七，肾气平均，故真牙生而长极；　　　　　　　　　 (21岁)
　　四七，筋骨坚，发长极，身体盛壮；　　　　　　　　　 (28岁)
　　五七，阳明脉衰，面始焦，发始堕；　　　　　　　　　 (35岁)
　　六七，三阳脉衰于上，面皆焦，发始白；　　　　　　　　 (42岁)
　　七七，任脉虚，太冲脉衰少，天癸竭，地道不通，故形坏而无子也。(49岁)
　　丈夫八岁，肾气实，发长齿更；
　　二八，肾气盛，天癸至，精气溢写，阴阳和，故能有子；
　　三八，肾气平均，筋骨劲强，故真牙生而长极；
　　四八，筋骨隆盛，肌肉满壮；
　　五八，肾气衰，发堕齿槁；
　　六八，阳气衰竭于上，面焦，发鬓颁白；
　　七八，肝气衰，筋不能动，天癸竭，精少，肾藏衰，形体皆极；
　　八八，则齿发去。
　　……
"Huang Di Nei Jing" sense: Seven-year-old woman. Shenqi Sheng, tooth more long hair; (7 years old) Tiangui to 27 and,任脉Qualcomm, Taichong vein Sheng,月事in order to nowadays, it has sub; (14 years) Notoginseng, Shenqi average, it really extremely long tooth of Health; (21) 47, bones strong, very long hair, body Sheng Zhuang; (28) 57, Yangming clock failure, noodle before coke, hair started falling; (35) 67, SANYANG decline in the pulse, the noodle are coke, white hair before; (42) 77,任脉true, Taichong feeble pulse less Tiangui dried up, tunnel barrier, so a bad shape and no son. (49) Eight-year-old husband, Shenqi real, long hair more teeth; 28, Qi Sheng, Tiangui to, refined gas overflow Writing, yin and yang and therefore can have sub-; 38, Shenqi average, strong bones strong, it is really a very long teeth of Health; 48, Takamori bones, muscle full Zhuang; 58, kidney failure, hair falling rotten tooth; 68, yang failure in the face coke, white发鬓awarded; 78, liver failure, tendons should not move, Tiangui dried up, fewer sperm, kidney failure, are very physical; 88, the teeth go hair. ... ...