"It is probably a long-term effect of early-life exposure to natural light that increases the chances of a child becoming short-sighted," he says. “早期暴露在自然光线中可能会产生长期的影响,增加孩子患近视的可能性,”他说。
Exposure to mercury, even in fairly small amounts, may cause serious health problems, and is a particular threat to the development of the child in utero and early in life. 即使只是十分少量的汞暴露,也可能会引起严重的健康问题,对于儿童在子宫内发育和生命早期发育更是一项威胁。
Nowadays, the frequency of exposure of child contact mother is more than child contact their father wherever at home or in school. 目前,无论在家还是在学校,儿童跟妈妈等女性接触的次数多于跟爸爸等男性接触的次数。