有一份关于儿童成长的调查显示，这些睡眠问题多方面影响我们孩子的健康成长，包括学习成绩，发育甚至免疫力。

And there is a growing body of research suggesting these problems are affecting many aspects of our children's health and development, including academic performance, growth and even immunity.

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根据美国的研究报道，生于有不孕病史的家庭的六岁儿童出现发育问题的风险更高， 其危险率较那些生于无怀孕困难家庭的儿童要高2.7倍。

The risk of developing problems by the age of six is 2.7 times higher among children born to those with a history of infertility than in those conceived without difficulty, according to US research.

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