We all tend to avoid certain things or situations that make us uncomfortable or even fearful. But for someone with a phobia, certain places, events or objects create powerful reactions of strong, irrational fear. Most people with specific phobias have several things that can trigger those reactions; to avoid panic, they will work hard to avoid their triggers. Depending on the type and number of triggers, attempts to control fear can take over a person’s life.
When people are confronted with unpleasant and potentially harmful stimuli such as foul odors or tastes, PET-scans show increased bloodflow in the amygdala. In these studies, the participants also reported moderate anxiety. This might indicate that anxiety is a protective mechanism designed to prevent the organism from engaging in potentially harmful behaviors.
A number of medical conditions can cause anxiety symptoms. These include an overactive thyroid, hypoglycemia, mitral valve prolapse, anemia, asthma, COPD, inflammatory bowel disease, Parkinson's disease, and dementia among others. Your physician may perform certain tests to rule out these conditions. But it is important to remember that anxiety is more often due to poor coping skills or substance abuse than any medical condition.
Agoraphobia is an anxiety disorder which primarily consists of the fear of experiencing a difficult or embarrassing situation from which the sufferer cannot escape. Panic attacks are commonly linked to agoraphobia and the fear of not being able to escape a bad situation. As the result, severe sufferers of agoraphobia may become confined to their homes, experiencing difficulty traveling from this "safe place". The word "agoraphobia" is an English adoption of the Greek words agora (αγορά) and phobos (φόβος). The term "agora" refers to the place where ancient Greeks used to gather and talk about issues of the city, so it basically applies to any or all public places; however the essence of agoraphobia is a fear of panic attacks especially if they occur in public as the victim may feel like he or she has no escape. In the case of agoraphobia caused by social phobia or social anxiety, sufferers may be very embarrassed by having a panic attack publicly in the first place. This translation is the reason for the common misconception that agoraphobia is a fear of open spaces, and is not clinically accurate. Agoraphobia, as described in this manner, is actually a symptom professionals check for when making a diagnosis of panic disorder.
Research is inconsistent as to whether nutritional deficiencies (for example, zinc or magnesium deficiency) may be risk factors for panic disorder. While food additives like aspartame, alone or in combination with food dyes, are suspected to play a role in the development of panic attacks in some people, it has not been confirmed by research so far.
Panic attacks are common among all anxiety disorders but what sets panic disorder apart is that panic attacks are unexpected and occur "out of the blue" without an obvious trigger (American Psychiatric Association, 2013; Craske & Barlow, 2007). These unexpected panic attacks must be associated with a significant change in behavior or be followed by at least one month of persistent worry about having another attack or about what will happen if you have another panic attack.
Many who have never dealt with this ailment dismiss it as an excuse by those who suffer from it to get out of mundane tasks or work requirements. Much like ADHD or mood disorders, anxiety is not something that can necessarily be seen or proven when you are the sufferer struggling to explain yourself to someone who doubts that your night sweats and inability to turn your brain off in the wee hours of the morning are not something you are making up to take a vacation day. Our life is not a vacation.
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.