To record the response, two possible paths are depending on the stimulus that occurs: the systemic path and the procedural path.
At first, stimuli do not require conscious processing.
These are usually physiological threats (such as illnesses, for example).
The paraventricular nucleus of the hypothalamus activates directly.
Stimuli require conscious treatment.
They do not involve an immediate danger.
Indirect activation of the paraventricular nucleus.
As we see, the stress response is defined with the start of many processes. Through these, the body tries to maintain a balance to counteract the undesirable effects of stress. This shows us, once again, that nature is very well done.