Due to the fact that the mental state, we have to keep a balance between the physical and the mental.
這句話中,due to the fact that后面需要接一個句子,而上句中只是一個名詞性短語,所以錯誤。另外,between...and...需要連接兩個名詞短語,上句中形容詞physical和mental后缺少名詞性成分。改正為Due to the fact that the mental state plays a significant role, we have to keep a balance between the physical well-being and the mental health.