Anxiety is part of life. In appropriate doses, it is an ally: it helps us stay alert to danger, prepare for important presentations, react quickly in an emergency. The problem arises when this response becomes intense, frequent and disproportionate — disrupting sleep, work, relationships and quality of life.
This guide brings together what current scientific evidence says about anxiety: what it is (and what it is not), the recognised types, how symptoms manifest, the causes, how diagnosis is made, and — most importantly — which treatments truly work, from Cognitive Behavioural Therapy to clinical hypnotherapy.
What is anxiety? Clinical definition
Anxiety is an emotional, cognitive, physiological and behavioural response of the organism to a perceived threat — real or imagined. It involves a combination of:
- Subjective sensation: fear, worry, nervousness, discomfort.
- Cognitive component: anticipation of danger, catastrophic thoughts, difficulty concentrating.
- Physiological component: tachycardia, sweating, muscle tension, shortness of breath.
- Behavioural component: avoidance, escape, safety-seeking.
When this response is proportional to the threat and disappears once the situation ends, it is normal and adaptive anxiety. When it is intense, persistent and disproportionate — causing clinically significant distress or functional impairment — it constitutes an anxiety disorder, recognised by the DSM-5 and ICD-11.
Normal vs. pathological anxiety
| Normal anxiety | Anxiety disorder |
|---|---|
| Tied to a concrete situation | Persistent, with no clear cause |
| Proportional to the stimulus | Disproportionate |
| Brief (minutes to hours) | Lasts weeks or months |
| Does not disrupt routine | Compromises sleep, work and relationships |
Types of anxiety disorder
The DSM-5 recognises several distinct anxiety disorders. Each has its own criteria, although they share common mechanisms and symptoms.
Generalised Anxiety Disorder (GAD)
Excessive and persistent worry about multiple themes (work, health, family, finances) for at least 6 months. Hard to control, accompanied by symptoms such as restlessness, fatigue, difficulty concentrating and muscle tension.
Panic Disorder
Recurrent and unexpected panic attacks — brief episodes (10–30 minutes) of intense fear accompanied by physical symptoms (tachycardia, shortness of breath, dizziness, sense of death). Can evolve into agoraphobia when there is avoidance of public places.
Specific Phobia
Intense and disproportionate fear of a specific object or situation (heights, animals, blood, planes). We discuss acrophobia (fear of heights) in a dedicated pillar.
Social Anxiety Disorder
Intense fear of social situations where the person may be evaluated or judged. Can be generalised (multiple situations) or specific (e.g. public speaking).
Agoraphobia
Intense fear or anxiety in public places where escape may be difficult (crowds, public transport, open spaces).
Selective Mutism
More common in children: consistent inability to speak in specific social situations despite speaking normally in familiar contexts.
Separation Anxiety Disorder
Intense anxiety when separated from attachment figures; can persist into adulthood.
Many patients present comorbid anxiety disorders (GAD + panic, social anxiety + depression) — which requires careful assessment.
Physical and emotional symptoms of anxiety
Anxiety symptoms span three dimensions: physical, emotional and cognitive. Not all appear at the same time, but most people with chronic anxiety show symptoms across all dimensions.
Physical symptoms
- Tachycardia and palpitations
- Excessive sweating
- Muscle tension (especially neck, shoulders and jaw)
- Shortness of breath or shallow breathing
- Dizziness and a sense of imbalance
- Nausea, abdominal discomfort, "knot in the stomach"
- Trembling and tingling in the extremities
- Difficulty swallowing (sensation of a "lump in the throat")
Emotional symptoms
- Constant fear with no apparent cause
- Feeling of "nerves on the surface"
- Irritability and impatience
- Internal restlessness
- Sense of losing control or "imminent madness"
Cognitive symptoms
- Recurrent worry about negative scenarios
- Difficulty concentrating
- Catastrophising (always imagining the worst scenario)
- Anticipatory anxiety (worrying about future events days in advance)
- Impaired memory for everyday tasks
For a detailed view of the 100 most reported physical symptoms, see the content on 100 symptoms of anxiety, which expands each sign.
Causes and risk factors
Pathological anxiety is multifactorial. It usually results from a combination of biological, psychological and environmental vulnerabilities.
Genetic and biological factors
Twin studies indicate that anxiety disorders have an estimated heritability of 30–40%. Dysfunctions in neurotransmitter systems (serotonin, GABA, noradrenaline) and variations in the amygdala (brain structure for fear processing) are also implicated.
Temperamental factors
- Behavioural inhibition trait in childhood (children who withdraw from novelty)
- Intolerance of uncertainty (need for control over the future)
- Stress sensitivity (increased autonomic reactivity)
Environmental factors
- Childhood trauma (abuse, neglect, parental loss)
- Recent stressful events (losses, separations, financial problems)
- Chronic stress (work, overload, conflict)
- Overprotective or critical parenting style
Cognitive factors
- Catastrophising (overestimating threat)
- Attentional bias toward danger (filtering the environment for threats)
- Intolerance of uncertainty and ambiguity
- Perfectionism and elevated self-criticism
Comorbidities
Anxiety rarely appears alone. Common comorbidities include:
- Depression (up to 60% of cases)
- Other anxiety disorders
- PTSD
- Eating disorders
- Substance abuse (alcohol, benzodiazepines)
How is the diagnosis made?
Diagnosis of anxiety disorder is clinical, made by a psychiatrist or psychologist through a structured interview and standardised questionnaires.
DSM-5 criteria
For GAD, for example, the following are required:
- Excessive worry about multiple events/activities for at least 6 months.
- Difficulty controlling the worry.
- Three or more associated symptoms (restlessness, fatigue, difficulty concentrating, irritability, muscle tension, sleep disturbance).
- Clinically significant distress or functional impairment.
- Not attributable to a substance or another medical condition.
Assessment instruments
- Beck Anxiety Inventory (BAI) — self-applied, assesses symptom severity.
- Hamilton Anxiety Rating Scale (HAM-A) — clinician-applied.
- GAD-7 — brief questionnaire for GAD.
- Structured clinical interview (SCID-5).
Complementary medical assessment
Before confirming the diagnosis, the professional must rule out medical causes that mimic anxiety: hyperthyroidism, arrhythmias, hypoglycaemia, substance use, vitamin deficiencies. Blood tests and cardiological assessment may be requested.
Treatments: therapy, medication and hypnotherapy
Treatment of anxiety disorders is multidisciplinary and usually combines psychotherapy, sometimes medication, and increasingly clinical hypnotherapy as a complement.
Cognitive Behavioural Therapy (CBT)
CBT is considered first-line treatment for most anxiety disorders. It includes:
- Cognitive restructuring: identifying and modifying catastrophic thoughts.
- Gradual exposure: facing feared situations in a controlled hierarchy.
- Skills training: problem-solving, assertiveness, emotional regulation.
Studies show that CBT produces lasting effects, with remission rates between 50–70% in GAD and benefits maintained for 12 months or more after termination.
Medication
In moderate to severe cases, the psychiatrist may prescribe:
- SSRIs (selective serotonin reuptake inhibitors): first-line pharmacological option.
- SNRIs (serotonin and noradrenaline reuptake inhibitors).
- Benzodiazepines: occasional and limited use due to dependence risk.
- Beta-blockers: for physical symptoms in specific situations.
Medication does not "cure" the disorder, but reduces symptoms, creating a window for psychotherapy.
Clinical hypnotherapy
Hypnotherapy is a complementary approach with growing evidence in anxiety. It works because it:
- Facilitates physiological self-regulation (reducing tachycardia, muscle tension).
- Increases the capacity for distancing from anxious thoughts.
- Allows reprocessing of emotional memories associated with fear.
- Teaches self-hypnosis as a practical tool for crises.
In Ericksonian hypnotherapy sessions, the therapist works with metaphors, attentional focus and post-hypnotic suggestion so the client develops new patterns of response to stress. The CBT + hypnotherapy combination often brings faster results than CBT alone in GAD and social anxiety.
Other approaches
- Mindfulness-Based Stress Reduction (MBSR): structured 8-week programme with good evidence.
- Acceptance and Commitment Therapy (ACT): focuses on accepting emotions rather than fighting them.
- EMDR: especially useful when there is associated trauma.
For practical tools for immediate regulation, see 5 strategies for dealing with anxiety.
Self-help techniques for anxiety
Although structured treatment with a professional is essential for diagnosed disorders, some techniques can be used day to day to reduce symptoms.
1. 4-7-8 breathing
Inhale through the nose for 4 seconds, hold for 7, exhale slowly through the mouth for 8. Activates the parasympathetic system within minutes.
2. 5-4-3-2-1 grounding technique
Identify 5 things you can see, 4 you can touch, 3 you can hear, 2 you can smell and 1 you can taste. Brings attention to the present when the mind begins to spiral.
3. Thought restructuring
When you notice a catastrophic thought, question it: what is the evidence? What is the real probability? Is there another interpretation?
4. Sleep hygiene
Regular sleep routine, no screens 1 hour before, dark and cool environment — poor sleep significantly amplifies anxiety.
5. Regular exercise
Moderate aerobic activity (walking, swimming, cycling) 3–5x per week measurably reduces anxiety symptoms.
6. Guided self-hypnosis
With professional guidance or specific audio recordings, practise states of deep calm and safety suggestions for use at critical moments.
For techniques aimed specifically at moments of crisis, see the content on how to calm anxiety in 5 quick steps.
Anxiety vs. stress: what is the difference?
Many people confuse anxiety with stress, but they are different phenomena — although they often coexist.
| Stress | Anxiety |
|---|---|
| Response to specific external pressure | Persistent, even without external cause |
| Tends to subside when the cause disappears | Tends to remain even after the cause passes |
| Predominantly physical symptoms (fatigue, tension) | Physical + cognitive + emotional symptoms |
| Disappears at rest | Persists even at rest |
Untreated chronic stress is one of the main risk factors for developing an anxiety disorder — which is why managing stress is also preventing anxiety.
When to seek professional help?
Seek help when:
- Anxiety appears most days of the week for more than 2 weeks.
- It interferes with sleep, work, studies or relationships.
- There are recurrent panic attacks.
- You start avoiding situations, places or commitments because of anxiety.
- There is use of alcohol, medication or substances to "cope".
- Thoughts appear that "it's not worth living like this".
The earlier treatment begins, the better the prognosis. Untreated anxiety disorders tend to chronify and increase the risk of comorbidities such as depression.
Frequently asked questions about anxiety
Is anxiety normal?
Yes, anxiety is a normal and adaptive human emotion. What is not normal is it becoming intense, frequent and disproportionate, to the point of causing significant distress. When it reaches that level, it is classified as a disorder.
Does all anxiety need medication?
No. Many mild to moderate cases respond well to CBT and complementary interventions (hypnotherapy, mindfulness). Medication is indicated mainly in moderate to severe cases or when there is comorbid depression.
Does hypnotherapy replace the psychiatrist?
No. Hypnotherapy works at the psychological level (emotional regulation, thought patterns, internal resources). Severe cases may also need psychiatric evaluation for medication. The two approaches are complementary, not competing.
Can anxiety appear only at night?
Yes. Nocturnal anxiety is common and is usually linked to worries that accumulate during the day and emerge when the person tries to sleep. It can include tachycardia, racing thoughts, sweating. Sleep hygiene and relaxation techniques help, but if frequent, professional assessment is worthwhile.
How to prevent anxiety from returning after treatment?
Maintenance involves: continuing to practise the techniques learned (breathing, mindfulness, self-hypnosis), maintaining a support network, avoiding known triggers (excessive alcohol, sleep deprivation), and returning to the professional at the first signs of relapse.
Sources and references
- American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders (DSM-5). 5th ed. Arlington, VA: American Psychiatric Publishing, 2013.
- World Health Organization. ICD-11 for Mortality and Morbidity Statistics. Geneva: WHO, 2022.
- National Institute of Mental Health (NIMH). Anxiety Disorders. Available at: https://www.nimh.nih.gov/health/topics/anxiety-disorders.
- American Psychological Association. Anxiety. Available at: https://www.apa.org/topics/anxiety.
- Hofmann, S. G., et al. (2012). The efficacy of cognitive behavioral therapy: A review of meta-analyses. Cognitive Therapy and Research, 36(5), 427-440.
- Bandelow, B., et al. (2015). Treatment of anxiety disorders. Dialogues in Clinical Neuroscience, 17(3), 327-335.
Next step
This content is educational and does not replace professional evaluation. Consult a qualified psychologist, psychiatrist or hypnotherapist for individualised diagnosis and treatment.
Want to understand whether hypnotherapy could help in your case? Book a free 20-minute initial session with clinical hypnotherapist Fabio Morus — a no-commitment conversation to assess your situation.
