小孩爱趴着睡，直接的原因就是脾虚，肺气不足，当然还有更加深层次的原因，中医就是整体论，需要整体的看问题，互相印证。
The direct reason why children like to sleep on their stomach is due to spleen deficiency and insufficient lung qi. Of course, there are also deeper reasons. Traditional Chinese medicine is a holistic approach that requires a holistic perspective and mutual verification.