perhaps its chemical

One type of story about a traumatic event might focus on grisly details in a detached way and cause a delayed traumatic reaction (such as, couldn't get out of bed for hours and couldn't stop wondering about crazy things, poisonings...) another would perhaps cause tears to come but at least not focus on grisly details so much and show signs that a community is grieving...the tears are better...

http://rebloggy.com/post/love-pretty-art-life-rock-interesting-fire-creative-flower-peaceful-flowers-natu/48177547407