A clinical depression-- as opposed to the everyday blues and even the intense grief we all experience from time to time-- is, in my experience, by far the most common cause of memory loss and intellectual deterioration.

• 根据我的经验，与我们大家经常遭受的日常忧郁甚至极度忧伤相反，临床抑郁症是记忆力丧失和智力衰退最常见的原因。