The causes of anxiety attacks are not well understood. Some traumatic life events can set off anxiety attacks if the person is prone to depression or anxiety disorders. Also, medical conditions and some medications may trigger anxiety attacks. Many believe anxiety attacks run in families with a genetic predisposition. In other words, if your mom and her sister had anxiety attacks, it’s likely you will, too.
Anxiety disorders increase one's chances for suffering from other medical illness, such as cardiovascular disorders, including obesity, heart disease and diabetes. More specifically, increased body weight and abdominal fat, high blood pressure, and greater levels of cholesterol, triglycerides, and glucose have all been linked to anxiety. While it is still unclear what causes the high co-morbidity between anxiety and bad physical health outcomes, research suggests that changes in underlying biology that is characteristic of anxiety may also facilitate the emergence for these other physical health outcomes over time. For example, changes in stress hormones, autonomic responses, as well as heightened systemic inflammation are all associated with anxiety disorders and negative health outcomes. These shared physiological states suggest a shared underlying biology and that anxiety maybe a whole-body condition.
Social anxiety disorder (previously called social phobia): People with social anxiety disorder have a general intense fear of, or anxiety toward, social or performance situations. They worry that actions or behaviors associated with their anxiety will be negatively evaluated by others, leading them to feel embarrassed. This worry often causes people with social anxiety to avoid social situations. Social anxiety disorder can manifest in a range of situations, such as within the workplace or the school environment.