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Anxiety Disorder – Symptoms, Causes, and Treatment

  • 16 min read
Angststörung – Symptome, Ursachen und Behandlung

When does fear become an anxiety disorder?

Anxiety is, at first, a completely normal protective response. It helps us recognize dangers early on and react quickly. It only becomes problematic when it becomes disproportionately intense, occurs without a clear cause, or begins to increasingly restrict daily life.


1. Anxiety is, at first, a normal protective response

A racing heart before an important exam, a queasy feeling on a dark street, or nervousness before a difficult conversation: Anxiety can be unpleasant, but it serves an important function. It keeps us alert and prepares the body to react quickly to a potential danger. Within a very short time, the body is put on high alert. The heart rate may accelerate, breathing changes, and the muscles tense up. At the same time, attention is focused more intently on potential dangers. What sometimes seems disruptive in everyday life was, from an evolutionary perspective, essential for survival. Normally, this reaction subsides as soon as the danger has passed. This is precisely where an important difference lies compared to an anxiety disorder. For those affected, the internal alarm system can be triggered even when there is objectively no immediate danger, or the reaction may be significantly stronger than the situation would warrant. However, this does not mean that the anxiety felt is “imaginary.” The physical and emotional reaction is real. The brain simply assesses a situation as more threatening than it actually needs to be.


2. When anxiety begins to dominate daily life 

An anxiety disorder isn’t defined solely by how intense the anxiety feels. Just as important is the question of how the anxiety affects one’s life. At first, the changes may seem subtle. Perhaps you avoid a crowded train because you’ve experienced intense anxiety there before. You might prefer to cancel a presentation because the thought of speaking in front of others seems almost unbearable. Or you might constantly check for physical symptoms because you’re worried you might be seriously ill. In the short term, avoiding such situations can bring relief. In the long term, however, this can allow anxiety to take up more and more of your life. A single avoided situation turns into several; activities must be planned with increasing care, and some people find themselves worrying in advance about where the next anxiety-inducing situation might arise. An anxiety disorder can therefore extend far beyond isolated moments of anxiety. It can interfere with work, relationships, leisure time, and independence. At some point, some people no longer structure their daily lives around what they’d like to do, but rather around avoiding situations that might trigger anxiety.


3. What types of anxiety disorders are there? 

“Anxiety disorder” is an umbrella term for various conditions. They differ, among other things, in what triggers the anxiety and how it manifests in daily life.

In generalized anxiety disorder, persistent and difficult-to-control worries are the main feature. Those affected often dwell on various areas of life—such as health, family, work, or financial security—and find it difficult to shake off these worries.

In contrast, panic disorder is characterized by recurrent panic attacks. The anxiety reaches a very high intensity within a short period of time and may be accompanied by pronounced physical symptoms. Often, a fear of when the next attack might occur also develops.

Social anxiety disorder primarily affects situations in which people fear being observed, judged, or rejected by others. In specific phobias, however, the fear is directed toward certain objects or situations—such as spiders, heights, or flying. Agoraphobia centers on situations from which escape might seem difficult or in which help might not be immediately available in an emergency.


What does an anxiety disorder feel like?

Anxiety doesn’t just happen in your head. It can put your entire body on high alert, dominate your thoughts, and ultimately change your behavior. Which symptoms are most prominent depends, among other things, on the specific type of anxiety disorder.


1. When the body goes into a state of alert 

Suddenly, the heart beats faster, the hands begin to shake, or breathing feels unusually shallow. Some people experience dizziness, nausea, or a tightness in the chest. Especially when such symptoms occur unexpectedly, they can cause additional anxiety—and thereby further intensify the fear. At first glance, there is a useful mechanism behind these physical reactions. When the brain perceives a potential danger, it prepares the body to react quickly. Heart rate and breathing may accelerate, muscles tense up, and attention becomes more focused on potential threats. In the case of an anxiety disorder, however, this alarm reaction can occur even when no corresponding external danger is present. The physical sensations are therefore still very real. Especially during a panic attack, these sensations can become so intense that those affected may fear, for example, losing control, fainting, or having a heart attack. The specific physical symptoms that occur vary from person to person. In addition to a racing heart, trembling, sweating, and difficulty breathing, dizziness, headaches, muscle tension, or gastrointestinal symptoms may also occur. Some people primarily notice the physical symptoms and do not initially realize that anxiety might be the underlying cause. At the same time, newly emerging or pronounced physical symptoms should not be hastily attributed to an anxiety disorder. Symptoms such as chest pain or shortness of breath, in particular, can also have other causes and should be evaluated by a doctor accordingly.


2. When Worries and Anxiety Dominate Your Thoughts 

Not every anxiety disorder manifests as sudden panic attacks. For some people, anxiety develops much more subtly. Their thoughts constantly circle around the question of what might happen: What if I get sick? What if something goes wrong at work? What if something happens to my family? It’s completely normal to worry from time to time. With an anxiety disorder, however, worries can become so frequent and intense that it’s difficult to let them go. Even when those affected know rationally that their fears are unlikely, the feeling of threat cannot simply be turned off. Depending on the type of anxiety disorder, these thoughts can vary greatly. In generalized anxiety disorder, persistent worries about various areas of life are often at the forefront. With social anxiety disorder, thoughts tend to revolve around making a fool of oneself, standing out in a negative way, or being judged by others. After a panic attack, on the other hand, a pronounced fear of the next attack can develop. This constant inner vigilance can be very exhausting over time. People who repeatedly run through possible dangers in their minds often find it difficult to relax. Concentration and sleep can suffer as a result, and even situations that are normally relaxing become increasingly accompanied by worry.


3. When Avoidance Helps in the Short Term—But Becomes a Problem in the Long Term 

People who are afraid of a specific situation often automatically try to avoid it. This is understandable at first: If you don’t board a crowded train, you won’t have to experience the feared panic attack there. If you decline an invitation, you won’t have to face the fear of being judged by others. And indeed, this strategy works in the short term. As soon as the anxiety-inducing situation is avoided, the tension subsides. However, it is precisely this relief that can contribute to the anxiety becoming entrenched over the long term. This is because avoidance means missing out on an important experience: that the feared situation can possibly be overcome and that the anxiety will subside again. Instead, the belief may strengthen that the situation was indeed dangerous and that nothing bad happened only because it was avoided. Over time, this pattern can expand. At first, perhaps only a specific train route is avoided; later, public transportation as a whole. Fear of a single social situation can lead to withdrawing from more and more gatherings. Daily life increasingly revolves around which situations feel as safe as possible. This is precisely why avoidance behavior plays an important role in many anxiety disorders. It also explains why certain psychotherapeutic approaches do not aim exclusively at making anxiety disappear as quickly as possible. Instead, the goal is also to gain new experiences with situations that were previously avoided out of fear.


Why Do Anxiety Disorders Develop?

There is usually no single cause that explains why some people develop an anxiety disorder while others do not. Rather, it is the result of a combination of factors. In addition to a certain predisposition, personal experiences, learned behavior patterns, and prolonged stress can influence how sensitively one’s own alarm system reacts to potential dangers.


1. Why There Is Usually No Single Cause 

After developing an anxiety disorder, those affected often search for a specific explanation. Was it a particularly stressful phase of life? Is it in the family? Or did a specific experience trigger the anxiety? In many cases, there is no clear-cut answer. Today, it is generally assumed that anxiety disorders can arise from an interplay of various factors. These include, among other things, genetic influences, individual learning experiences, how a person processes stress, and biological mechanisms of anxiety regulation. Certain personality traits can also contribute to a person reacting more sensitively to uncertainty or potential dangers. A family history of anxiety disorders does not mean that an anxiety disorder is inevitably inherited. Rather, there may be a certain susceptibility that is compounded by other factors. Two people can therefore experience the same stressful situation and react to it in completely different ways. The commonly cited explanation of a simple “imbalance of neurotransmitters” also falls short. While neurotransmitters such as serotonin are involved in processes that influence mood and anxiety, the development of an anxiety disorder cannot be reduced to a single neurotransmitter.


2. The Role That Stressful Experiences Can Play 

Sometimes the onset of anxiety can be clearly linked to a stressful experience. An accident, for example, can lead to driving subsequently triggering intense fear. After a serious illness, concerns about one’s own health may intensify. Losses, violence, or other traumatic experiences can also alter one’s sense of safety in the long term. The brain has the ability to learn from such experiences. If a situation is associated with intense fear or danger, even similar situations later on can trigger an alarm response—even if the original danger is no longer present. Certain places, physical sensations, or thoughts can be enough to reactivate the learned fear.

However, not every anxiety disorder stems from trauma. For some people, the condition develops gradually and without a single event that can be clearly identified as the cause. Many minor stresses or certain learning experiences can also play a role. Therefore, the key question is not so much whether there was a single experience. Rather, it is about understanding which experiences have shaped one’s perception of danger and which reactions today contribute to the persistence of the anxiety.


3. Why Persistent Stress Can Exacerbate Anxiety 

A demanding period at work, family conflicts, financial worries, or a chronic lack of rest can cause the body and mind to remain tense over an extended period. Normally, periods of arousal alternate with times when the body can recover. If these recovery phases are missing, internal tension can become increasingly noticeable. This can also influence how intensely anxiety is perceived. People who are already exhausted and tense may react more sensitively to physical changes or distressing thoughts. At the same time, sleep problems, difficulty concentrating, and inner restlessness may set in—symptoms that, in turn, can cause further anxiety. However, stress alone does not necessarily mean that an anxiety disorder will develop. Rather, it can be one of several factors that, in the presence of a corresponding susceptibility, contribute to the development or persistence of anxiety.


How are anxiety disorders treated?

Anxiety disorders can generally be treated effectively. The appropriate therapy depends, among other things, on the type of anxiety disorder, its severity, and the individual’s personal situation. Psychotherapy plays an important role. Depending on the symptoms, medication may also be used and supplemented by supportive measures in daily life.


1. Why Psychotherapy Can Help with Anxiety Disorders 

Many people with anxiety disorders actually know that their anxiety is disproportionately intense in certain situations. However, this awareness alone is often not enough to change the anxiety. After all, anxiety does not arise solely on a rational level. Thoughts, physical reactions, and learned behavioral patterns are intertwined and can reinforce one another.  Psychotherapy addresses precisely these interconnections. Cognitive behavioral therapy has been particularly well-studied in the context of anxiety disorders. In this approach, those affected first learn to better understand their anxiety reactions: Which situations trigger anxiety? What thoughts arise during these moments? How does the body react—and what can I do to make the anxiety go away as quickly as possible? For example, thoughts such as “I can’t take this” or “Something terrible is bound to happen soon” can be examined more closely. The goal is not simply to convince oneself that everything will be fine. Rather, it is about recognizing automatic evaluations, examining them, and developing a different way of dealing with them. One’s own behavior is just as important. As already described, avoidance can provide short-term relief but still perpetuate the anxiety in the long run. That’s why therapy often focuses on gradually learning to cope again with situations that have been avoided up to that point. Psychotherapy is not simply meant to “make the anxiety go away.” Rather, those affected learn to better understand their reactions, deal with the anxiety differently, and gradually regain more freedom of action.


2. Why Confronting Anxiety Can Be Part of Therapy 

At first glance, it may seem counterintuitive to confront a situation that one fears greatly. However, for various anxiety disorders, so-called exposure or confrontation is an important component of cognitive behavioral therapy. The reasoning behind this can be understood by examining the cycle of avoidance. While repeatedly avoiding an anxiety-inducing situation provides short-term relief, it also means missing out on experiences that could change one’s current assessment of the situation. In professionally guided exposure therapy, individuals therefore deliberately confront anxiety-inducing situations or stimuli. Through this process, they can learn that anxiety is manageable and that the feared consequences often do not materialize. Over time, this can lead to new learning experiences.

What such a confrontation looks like depends heavily on the specific anxiety disorder and the individual’s situation. Social anxiety, for example, involves different situations than a specific phobia or panic disorder. Exposure exercises should therefore not be understood as a general call to expose oneself to the greatest fear as quickly as possible. They are individually prepared and tailored within a therapeutic setting. Ultimately, the goal is not to never feel fear again. Rather, the aim is for fear to lose its controlling influence—so that decisions can once again be made based more on what is important to you and less on what can be avoided.


3. The Role Medications Can Play 

In addition to psychotherapy, medication may also be an option for anxiety disorders. Whether it is appropriate depends, among other things, on the type and severity of the symptoms, any comorbid conditions, and the individual’s personal circumstances. Medications used to treat various anxiety disorders include certain antidepressants, particularly selective serotonin reuptake inhibitors (SSRIs) and, in some cases, serotonin-norepinephrine reuptake inhibitors (SNRIs). Although they are classified as antidepressants, they are also used to treat certain anxiety disorders. Their effects generally do not take effect immediately. It may take some time before an improvement becomes noticeable. Potential side effects and drug interactions must also be taken into account. The selection, dosage, and duration of medication treatment should therefore be determined by a physician.

Sedatives from the benzodiazepine class can reduce anxiety in the short term, but they are problematic for long-term treatment, in part due to their potential for dependence. For this reason, too, medication for anxiety should never be started, adjusted, or discontinued on one’s own. There is no one-size-fits-all answer to whether psychotherapy alone or a combination with medication is appropriate. Rather, treatment should be tailored to the specific condition and the needs of the individual.


4. What You Can Do to Help Yourself 

Even outside of therapy, there are ways to help manage anxiety. While they do not replace professional treatment for an anxiety disorder requiring medical care, they can help reduce physical tension and make daily life more stable. Regular exercise, for example, can provide a counterbalance to prolonged periods of inner tension. Getting enough sleep and maintaining as regular a daily routine as possible are also important, because exhaustion and lack of sleep can make stress feel more intense. Relaxation and breathing exercises can also be helpful. The goal here is not so much to immediately suppress every anxiety that arises. Rather, such methods can help you become more aware of physical tension and develop a calmer way of dealing with it. Talking with others can also provide relief. Support groups, for example, offer the opportunity to share experiences with people who have faced similar fears. At the same time, it can be helpful to let loved ones know what provides support in stressful situations—and what tends to further reinforce avoidance.


When Should You Seek Professional Help for Anxiety?

Anxiety doesn’t have to become unbearable before seeking support makes sense. Rather, an important sign is when anxieties persist over a long period, take up more and more of your life, or cause your daily routine to revolve increasingly around them. The sooner such patterns are recognized, the sooner targeted steps can be taken to counteract them.


1. When anxiety increasingly restricts your life 

Many people initially try to cope with their anxiety on their own. This often works well for temporary anxiety. It becomes more difficult when one’s behavior gradually changes: certain places are avoided, invitations are declined, or everyday situations can only be managed with great tension. Persistent worries can also become a burden, even if no severe panic attacks occur. If thoughts about potential dangers rarely subside, sleep is affected, or it becomes increasingly difficult to focus on other things, this should be taken seriously.


2. Where Those Affected Can Find Support 

A good first point of contact is your primary care physician’s office. There, you can discuss your symptoms and rule out any possible physical causes. Depending on the situation, further treatment or diagnostic testing may then be recommended.

A psychotherapy consultation also offers the opportunity to better understand the symptoms. During this process, the therapist and patient work together to identify which fears are present, how long they’ve existed, and how significantly they impact daily life. This helps determine what additional support might be appropriate.

In cases of severe or complex symptoms, specialists in psychiatry and psychotherapy, as well as specialized outpatient clinics or hospitals, can also be important points of contact.

Taking the step to seek support does not mean that the anxiety must have already reached a certain level. Anyone who notices that worries, panic, or avoidance are increasingly compromising their quality of life should seek counseling even if they are still unsure about the exact cause of their symptoms. Ultimately, the key is not to try to cope with anxiety on your own for as long as possible. Rather, the goal of treatment is to regain more freedom in daily life—so that anxiety does not dictate which places you visit, which people you meet, or which decisions you make about your own life.

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