Anxiety Disorders: Symptoms, Causes and Treatments That Work
Anxiety itself is not a disease. It is a normal response that sharpens attention before an exam, an interview or a real threat. It becomes a disorder when it is persistent, disproportionate to the situation, and starts to shrink a person’s life – avoiding travel, declining opportunities, skipping social contact.
Anxiety disorders are among the most common mental health conditions worldwide, and among the most treatable. They are also frequently missed, partly because the symptoms so often present as physical complaints.
How anxiety shows up in the body
Many people with anxiety disorders first visit a physician, not a psychiatrist, because what they notice is bodily.
- Palpitations or a pounding heartbeat
- Chest tightness
- Breathlessness or a sense of not getting a full breath
- Dizziness or lightheadedness
- Gastrointestinal upset, nausea, loose stools
- Muscle tension, jaw clenching, headaches
- Tremor, sweating, hot flushes
- Difficulty falling asleep because the mind will not slow down
These symptoms are real, not imagined. They are produced by a genuine physiological stress response.
The main types
Generalised anxiety disorder
Persistent worry across many domains – health, money, family, work – that is difficult to control, present most days for at least six months, along with restlessness, fatigue, poor concentration, irritability, muscle tension or disturbed sleep.
Panic disorder
Sudden surges of intense fear that peak within minutes, with strong physical symptoms and often a conviction of dying or losing control. What defines the disorder is not the attack itself but the persistent fear of the next one, and the avoidance that follows.
Social anxiety disorder
Marked fear of situations involving possible scrutiny – speaking, eating in public, meeting new people – with avoidance or intense distress. It is frequently mistaken for shyness and often begins in adolescence.
Specific phobias
Intense fear of a particular object or situation such as heights, injections or flying, out of proportion to actual danger.
Health anxiety
Persistent preoccupation with having a serious illness that continues despite reassurance and normal investigations, often driven by repeated checking and searching online.
Unlock More Content
Watch a short advertisement to continue reading this article.
Conditions that imitate anxiety
Before settling on a diagnosis, a doctor should reasonably rule out:
- Hyperthyroidism
- Anaemia
- Cardiac arrhythmia
- Low blood glucose in people on diabetes medication
- Excess caffeine, nicotine or stimulants
- Withdrawal from alcohol or sedatives
- Side effects of some asthma inhalers, steroids and decongestants
- Obstructive sleep apnoea
A basic evaluation usually includes thyroid function, haemoglobin and an ECG where palpitations are prominent.
Treatments with real evidence
Cognitive behavioural therapy
CBT is first-line for most anxiety disorders and, for many people, as effective as medication with lower relapse rates after stopping. It is practical rather than open-ended: identifying the thoughts that maintain anxiety, testing them against evidence, and gradually reducing avoidance.
Exposure
For phobias, panic and social anxiety, graded exposure is the active ingredient. Avoidance gives immediate relief and makes the fear stronger over time. Structured, repeated, tolerable exposure reverses that.
Medication
SSRIs and SNRIs are the standard drug treatments. They take two to six weeks to work, may briefly increase anxiety in the first week or two, and are usually continued for at least six to twelve months after improvement to reduce relapse.
Benzodiazepines relieve anxiety within minutes, which makes them tempting, but tolerance and dependence develop quickly and they interfere with the learning that exposure therapy depends on. They are appropriate for short, defined periods, not as ongoing treatment.
Things that help alongside treatment
- Regular aerobic exercise, with effect sizes in trials comparable to some medications for mild to moderate anxiety
- Consistent sleep timing
- Reducing caffeine, which many people underestimate
- Structured breathing practice, which reduces the physical arousal that fuels panic
- Reducing alcohol, which reliably worsens anxiety in the following 24 hours
Mindfulness-based programmes have moderate evidence. Apps can help mild symptoms but are not a substitute for therapy in moderate or severe disorder.
When to seek help promptly
- Anxiety that stops you working, studying, travelling or maintaining relationships
- Panic attacks that are becoming more frequent
- Anxiety with low mood, hopelessness or loss of interest
- Use of alcohol or sedatives to cope
- Any thoughts of self-harm – this needs same-day support, not a wait for an appointment
Anxiety disorders respond well to treatment, and most people who receive proper therapy or medication improve substantially. The main barrier is usually delay in asking.
This article is general health information and is not a substitute for assessment by a qualified mental health professional. If you are in distress, please reach out to a doctor or a trusted person today.