“If the brain continues to perceive something as dangerous, the hypothalamus releases corticotropin-releasing hormone (CRH), which travels to the pituitary gland, triggering the release of adrenocorticotropic hormone (ACTH). This hormone travels to the adrenal glands, prompting them to release cortisol. The body thus stays revved up and on high alert. When the threat passes, cortisol levels fall. The parasympathetic nervous system (the ‘brake), then dampens the stress response” (Harvard Health).
But, there is hope! Learning about the body's processes and stress response cycle, along with learning how to complete the cycle yourself, can help regulate your body faster, and bring it back down to stop the constant activation.