Thoughts of mortality can be helpful:

Thinking about death now? Good. A new University of Missouri analysis shows that a reminder of mortality can actually have positive consequences.

Lead author Ken Vail, a doctoral student in psychology, and psychological sciences Professor Jamie Arndt reviewed past studies on thoughts of death and found that such thoughts don’t have to lead to militaristic negative attitudes, as past findings have indicated. Instead, in the right context, thoughts of death can make people feel a part of humanity as a whole, be more helpful and make healthy changes.