没有证据表明化水会影响大脑发育或智商. New study finds no evidence fluoridated water harms brain development or IQ.

美国的一项新研究没有发现饮用化水会影响儿童智商或成年人脑功能. A new U.S. study found no evidence that drinking fluoridated water affects childhood IQ or adult brain function. 研究人员从青少年期追踪了1万多人到80岁, 发现那些用化水的人与没有使用过的饮用者之间认知能力并无显著差异. Researchers tracked over 10,000 people from adolescence to age 80 and found no significant differences in cognitive performance between those with fluoridated water and those without. 结果反驳了化物对大脑发育有损的说法, 并支持疾病预防中心认为它可以安全地防止牙腐烂. The findings counter claims that fluoride harms brain development and support the CDC's stance that it is safe for preventing tooth decay.