It reallys make me wonder how of human behavior is really just evolution and not conscious choice. some kind of just after fact rationalization
Here's an interesting example of the potential risks: http://www.smithsonianmag.com/smart-news/how-mouse-utopias-1...
"How 1960s Mouse Utopias Led to Grim Predictions for Future of Humanity"
[Edit: added link].
This was my experience at least.
As mammals we are hardwired to respond to (perceived) life threatening situations by triggering our own the sympathetic brain and entering fight or flight or freeze mode.
Once the situation goes back to normal, the parasympathetic brain is supposed to kick in to "rest and digest" the stress and move on, stronger and more resilient to future stressful situations.
The natural tendency to ohmostasis of the human body at work.
An interesting question could be: why do humans often seem so affected by unresolved stress, causing anxieties, depression, stress related health issues etc...?
In case you want an effective tool to tap into your natural ability to "destress" yourself, start practicing the Trauma Release Exercises, developed by David Berceli.
They are inexpensive to learn, self-administrated and among the most effective techniques I've found to transform what crippled me into my greatest asset.
I really really appreciate it.
My interpretation of this experiment is that social skills play a part in sexual attractiveness for rats, and that traumatizing them as teenagers adversely impacts their social skills.