We may not even realize that we've developed this kind of mental allergy.

我们可能甚至都没意识到我们已经产生了这样一种“精神过敏”。

If we are not aware of this, we will keep being vulnerable to many kinds of mental allergies.

如果我们无法意识到这一点，我们会变得脆弱，容易遭受到许多不同的“精神过敏”。