A lot of folks are focusing on the title, but I think this is the most interesting part:

> When they gave the mice a chemical that inhibited inflammation, neither the brain-cell problem nor the depressive symptoms went away. But the memory loss and inflammatory macrophages did disappear.

>And that led them to conclude that the post-stress memory trouble is directly linked to inflammation — and the immune system — rather than to other damage to the brain. That type of information can pave the way for immune-based treatments, Godbout said.