茶水积垢茶垢如不及时洗掉,经常饮用会使消化、神经、泌尿、造血等系统有发生病变的可能。烟雾尘埃烧柴燃煤引起的烟雾和灰尘等污染物,会随空气进入人的肺部并渗到血液里;吸烟者将烟气吸入肺部,尼古丁、焦油和一氧化碳等有害物质会造成动脉硬化,使人早衰。 Potash tea scale if not washed out in time, often drinking will digest, nervous, urinary, hematopoietic system may occur lesions. Smog dust Burning coal-fired smoke and dust and other pollutants, will enter the human lungs and air into the bloodstream; smokers smoke into the lungs, nicotine, tar and carbon monoxide and other harmful substances can cause atherosclerosis , Make people premature.