Physiologically, anxiety is caused by cortisol, the hormone that regulates stress. Your body should naturally know how to balance your cortisol levels to your specific needs, but sometimes that doesn’t happen and too much cortisol results in heightened anxiety, according to WebMD.
Cortisol is produced in your adrenal glands and cortisol receptors send signals to tell your body to make more or less cortisol, depending on your needs. However, sometimes something goes wrong and a traumatic event can cause your worry levels to go up, and therefore your cortisol levels do the same. The anxiety and the extra cortisol can lead to a variety of issues including weight gain, headaches, memory problems, and even heart disease. But cortisol levels that are out of balance can lead to mental health issues as well, including depression, and of course, heightened anxiety. But what outside triggers can cause this essential hormone to work incorrectly?