The following is an excerpt from Yahoo Lifestyle October 06 2015
You brain is constantly sweeping for dangers in the environment — and when you’re in an argument, it’s working at full force.
If there’s a face, voice, sound, gesture, word, or phrase that appears threatening, the amygdala — the part of the brain that helps to process your emotions — will signal an alarm that causes your hypothalamus to activate the release of hormones by your pituitary and adrenal glands. “This is your brain’s way of saying it’s time to fight or flee,” (Stan Tatkin, PsyD, MFT)
When you’re in fight mode, your brain does a lot more than come up with your next snappy remark. In the midst of an argument, here’s what’s going on in your brain and body.
Short-term memory loss: Ever get tongue-tied during an intense argument, or forget the point you were about to make? It’s not your fault. A bad argument can bring on stress, which is bad for your short-term memory. Stress increases cortisol, a steroid hormone that helps your body stay alert in a bad situation. According to a study done by researchers at the University of Iowa, increased levels over an extended period of time have been linked to loss of synapses in the pre-frontal cortex, which is associated with short-term memories.
Impaired social judgement: “An overstressed brain is compromised in its ability to manage complex social situations,” says Tatkin. “An overstressed brain is more likely to go to war than one that is not. A warring brain does not care if the threat is coming from a loved one. It shoots first and asks questions later.”
Innovation and new ideas: While it’s hard to see a positive outcome of an argument while you’re in the heat of the moment, arguing can actually lead to innovation. Unlike “bad” arguments — where there’s no resolution, only negative feelings — “when we have a good argument and are able to express our views and be listened to, we strengthen our ability to have really powerful exchanges of ideas,” (Judith E. Glaser) “During a productive argument, the outside layer of nerves in our brain strengthen, which allows us to work through challenges in the future that would initially cause us to give up.”