Nervousness is a common feeling brought on by your body's stress response. This involves series of hormonal and physiological responses that help prepare you to handle a perceived or imagined threat. Your body prepares to fight or flee a threat by boosting adrenaline production.

What is the root cause of nervousness?

There is a multitude of sources that could be triggering your anxiety, such as environmental factors like a job or personal relationship, medical conditions, traumatic past experiences – even genetics plays a role, points out Medical News Today. Seeing a therapist is a good first step.

What causes nervousness in the brain?

When the amygdala notices potential danger, it sends signals to the hypothalamus, which triggers a fight or flight response. In the anxious brain, the amygdala is large and hypersensitive. Because of this, the amygdala sends a lot of false alarms.