<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Why is it so difficult for women to apply mascara with their mouths closed?
<|assistant|>
It is hard for women to apply mascara with their mouths closed because the wand of the mascara brush cannot access the lashes when the mouth is obstructing the space. The wand must be able to grab the upper lashes from the root to the tip, which is difficult to do with the mouth open. Therefore, closing the mouth and bringing the wand as close to the lashes as possible is the best way to get the desired results.