While most of the findings about the effects of caffeine remain open to furthertesting, caffeine’s boosting your brainpower has been proven beyond any reasonalble doubt.

While whether the theoretic researches of literature has any creative value remain open to further testing, the damage on literary creation from mechanical process of essay writing has been proven beyond any reasonable doubt.

（為何你的句子裡把兩個conjunction並排？）

我的造句：

While most people doubt the slipper personality of the person, their emotional dependence on him has been proven beyond any reasonable doubt.