Anxiety, the threat, where none exists

  Anxieties some argue are  patterns of genetic vulnerability, While admittedly anxiety has a genetic component,  childhood experiences such as early trauma can play an important role. 

In people with extreme anxiety, anxiety disorders, the brain circuitry that controls the threat response seems to go awry: The amygdala, a structure that detects danger, can become overactive, triggering a threat when none really exists