擦背皮肤下存在一种组织,平时处于休眠状态,当用毛巾摩擦皮肤后,受到刺激的组织细胞就会活跃起来,进入血液循环,并逐步发展演变为网状细胞。网状细胞具有免疫功能。因此,经常擦背能增强免疫力,达到防癌的效果。开窗地面及许多建筑材料都能释放致癌气体——氡及其子体(氡衰变的物质),开窗可使室内 Rub under the skin there is a kind of organization, usually in sleep state, when rubbing the skin with a towel, the stimulated tissue cells will be active, into the blood circulation, and gradually evolved into reticular cells. Reticular cells have immune function. Therefore, often rub the back can enhance immunity, to achieve the effect of anti-cancer. Fenestration and many building materials can release carcinogenic gases - radon and its daughters (radon decaying substances), open the window can make indoor