[Hi Matt,

Remember we talked about neurogenesis occurs all thru life esp in the region of the hippocampus. Keeping that in mind our bodies are wired in away under stress to launch counter calming hormones so the hippocmpus doesnt get to hammered with cortisol. Sure there are moments under extreme stress rats may not find there way out of a maze --but once stress is reduced doesnt mean the damage is perm. To get to your point its something that occurs over time .