When you live in the stress, you simply live in the survival mode, stress hormones take over.
A primitive nervous system, called sympathetic nervous system start turning on the body and mobilize enormous amount of energy in response to the stressor.
The body automatically starts to tap into the resources it will need to deal with the danger.
Heart rate and respiratory rate increase, we can run, fight or hide. More energy is produced by raising glucose level which is released to the blood system.
Our immune system dials up and then dials down as adrenaline and cortisol flood the muscles, rush of energy is provided, so we can either escape or fend off the stressor.
Our hind brain takes over our rational forebrain, we then have less capacity to think creatively, and we rely on our instinct to instantly react.
Our large brain, makes us capable of thinking about our problems, reliving the past events or even forecast the future by thought alone.
Our body doesn’t know the difference, whether is past or future, the feeling you bring back, feels like it’s happening right now. Which shows us that, even thought it has happened in the past, the body feels like that’s what is happening now.
Source of information
Becoming Supernatural by Dr. Joe Dispenza.