脚与上呼吸道黏膜有着密切的神经联系,一旦脚部受凉,可反射性地引起上呼吸道的毛细血管收缩,纤毛摆动减慢。尤其小儿的黏膜柔嫩,纤毛和鼻毛尚未长成,因而对外来细菌的抵抗力相对较弱,病毒就会乘虚而入,从而引起 Feet and upper respiratory tract mucosa has a close nerve contact, once the feet of the cold, reflex can cause upper respiratory tract capillary contraction, ciliary slow down. In particular, children’s mucous membranes are tender, cilia and nose hair has not yet grown into, so the resistance of foreign bacteria is relatively weak, the virus will take advantage of, resulting in