^ Jump up to: a b Jeronimus BF, Kotov R, Riese H, Ormel J (October 2016). "Neuroticism's prospective association with mental disorders halves after adjustment for baseline symptoms and psychiatric history, but the adjusted association hardly decays with time: a meta-analysis on 59 longitudinal/prospective studies with 443 313 participants". Psychological Medicine. 46 (14): 2883–2906. doi:10.1017/S0033291716001653. PMID 27523506.
Anxiety disorders reflect disorders that share a general feature of excessive fear (i.e. emotional response to perceived or real threat) and/or anxiety (i.e. anticipation of future threat) and demonstrate behavioral and functional disturbances as a result. Panic attacks are a feature that can occur in the context of many anxiety disorders and reflect a type of fear response.
Panic attacks (or anxiety attacks - the terms are interchangeable) are intense episodes of fear which are so powerful that they trick you into fearing that you are dying, going crazy, about to faint, or losing control of yourself in some vital way. The symptoms of a panic attack feel so powerful and threatening that they convince you that you're in terrible danger.
A helpful approach to distinguishing normal anxiety from an anxiety disorder is to identify the cause of the anxiety, and then assess whether the anxiety symptoms are a proportional response to it. Worries, fears, and intrusive thoughts that are extreme, unrealistic, or exaggerated and interfere with normal life and functioning could constitute an anxiety disorder. For instance, being concerned about getting sick and taking steps to avoid germs, like using hand sanitizer and avoiding touching door handles, does not necessarily constitute an anxiety disorder; however, if the concern about sickness makes it difficult to leave the house, then it is possible that the person suffers from an anxiety or anxiety-related disorder.
Relaxation strategies, such as deep diaphragmatic breathing, have been shown to lower blood pressure, slow heart rate, and reduce tension that is commonly associated with stress. Engaging in relaxation strategies regularly can equip you to reduce anxiety when it occurs, by allowing your body to switch from its anxious state to a more relaxed and calm state in response to stressors.
There are several different anxiety-related disorders. Some symptoms overlap across many of these disorders, and others are more specific to a single disorder. In general, however, all anxiety-related disorders feature worry, nervousness, or fear that is ongoing, excessive, and has negative effects on a person's ability to function. It can be tricky to decide when anxiety is typical or linked to a disorder, which is why diagnoses should be made by licensed professionals, such as psychologists or psychiatrists.
When we experience an involuntary high degree stress response, the sensations can be so profound that we think we are having a medical emergency, which anxious personalities can react to with more fear. And when we become more afraid, the body is going to produce another stress response, which causes more changes, which we can react to with more fear, and so on.
Many patients first report symptoms to their primary care physician. Primary care physicians (PCPs) will administer a thorough physical exam to rule out hormonal imbalances, side effects of medications, and certain illnesses. If the symptoms are not due to other conditions, the physician may diagnose the patient with anxiety and therefore refer the patient to a psychologist or psychiatrist. Physicians practice in hospitals, clinics and private practices.

Test anxiety is the uneasiness, apprehension, or nervousness felt by students who have a fear of failing an exam. Students who have test anxiety may experience any of the following: the association of grades with personal worth; fear of embarrassment by a teacher; fear of alienation from parents or friends; time pressures; or feeling a loss of control. Sweating, dizziness, headaches, racing heartbeats, nausea, fidgeting, uncontrollable crying or laughing and drumming on a desk are all common. Because test anxiety hinges on fear of negative evaluation,[26] debate exists as to whether test anxiety is itself a unique anxiety disorder or whether it is a specific type of social phobia.[27] The DSM-IV classifies test anxiety as a type of social phobia.[28]

Cognitive therapy and exposure therapy are two CBT methods that are often used, together or by themselves, to treat social anxiety disorder. Cognitive therapy focuses on identifying, challenging, and then neutralizing unhelpful or distorted thoughts underlying anxiety disorders. Exposure therapy focuses on confronting the fears underlying an anxiety disorder to help people engage in activities they have been avoiding. Exposure therapy is sometimes used along with relaxation exercises and/or imagery.