Anxiety

Anxiety is one of the most common reasons people look for a therapist, and anxiety disorders are among the most treatable of all mental health conditions. Thoughts that will not slow down, a tight chest, a night spent going over one worry again and again: these are ordinary experiences. For many people they are also the start of something that deserves real support.

In 2021 an estimated 359 million people worldwide were living with an anxiety disorder, making them the most common of all mental disorders.¹ Highly effective treatments exist, yet only about one in four people who need care (27.6%) currently receive any.

Is this anxiety, or an anxiety disorder?

Anxiety itself is not a disorder. It is a normal, protective response to a threat or a challenge, with examples including the quickened heartbeat before an exam and the alertness that keeps you careful on a dark road.

This kind of anxiety rises when it is needed and settles once the situation passes.

People living with an anxiety disorder often experience fear and worry that is both intense and excessive,¹ out of proportion to the situation. It does not stop once the moment has passed; it lasts, it is hard to control, and it starts to get in the way of work, relationships and ordinary daily life.

Clinicians look at how long the anxiety has lasted, how much control a person has over it, and how much it interferes with living. Generalised anxiety disorder is a clear example: its criteria describe excessive anxiety and worry lasting at least six months. The worry is difficult to control, and it comes with symptoms such as restlessness, being easily fatigued, difficulty concentrating, irritability, muscle tension or disturbed sleep.²

These are the kinds of criteria set out in the DSM-5-TR, the diagnostic manual used across much of the world. Only a qualified professional can make a diagnosis, though knowing what the criteria cover can still help you decide whether to ask for help.

The main anxiety disorders

"Anxiety disorder" covers a group of conditions rather than a single condition. The World Health Organization describes several distinct kinds.¹ Living with more than one at the same time is common.

• Generalised anxiety disorder (GAD) - persistent and excessive worry about everyday activities or events.
• Panic disorder - recurring panic attacks and a fear of further attacks.
• Social anxiety disorder - intense fear and worry about social situations in which a person might feel humiliated, embarrassed or rejected.
• Agoraphobia - excessive fear and avoidance of situations that might cause a person to panic or feel trapped, helpless or embarrassed.
• Separation anxiety disorder - excessive fear or worry about being separated from the people a person is most emotionally attached to.
• Specific phobias - intense, out-of-proportion fears of particular objects or situations that lead to avoidance and real distress.

Selective mutism, most often seen in children, is also grouped with the anxiety disorders.¹ The term describes a person who speaks freely in some settings but not in others. Related conditions such as obsessive-compulsive disorder and post-traumatic stress disorder are classified separately in current diagnostic manuals, though anxiety is part of both.

What anxiety can feel like

Anxiety is not only a feeling in the mind: it shows up in the body, in thinking and in behaviour. It can look quite different from one person to the next.

In the body, anxiety can bring a racing or pounding heart, shortness of breath, sweating, trembling, dizziness, a churning stomach, muscle tension and disturbed sleep.² Because these sensations are so physical, many people see a doctor about their heart or stomach first, and anxiety is only recognised as the cause later.

In the mind, there is worry that is hard to stop, a sense of dread, difficulty concentrating, and thoughts that go straight to the worst possible outcome.² In behaviour, anxiety often shows as avoidance, and people put off the meeting, the party, the phone call or the journey that feels like too much.

Avoidance brings relief in the short term, but over time it tends to make the fear stronger. That is one of the reasons a person ends up doing less and less.

Why anxiety happens

There is rarely a single cause; anxiety disorders usually come from a combination of factors. It is not anyone's fault that they develop.

Some of it is biological: anxiety disorders tend to occur in families, and differences in the brain systems that manage fear and threat also play a part. They are about twice as common in women as in men.²

Some of it is psychological: a tendency to worry, to expect the worst, or to have learned early in life that the world is unsafe. Some of it is environmental: stress, loss, trauma, financial pressure, illness, or the ordinary strain of a difficult period. Physical health problems, caffeine, alcohol and some medications can make anxiety worse.

Anxiety across different lives

Anxiety does not look the same at every age or in every life. Children and teenagers often show it through tummy aches, headaches, irritability, clinginess or refusing school, rather than by saying they feel anxious. The median age of onset, the midpoint across cases, is around eleven years.²

Older adults may have anxiety mistaken for a physical illness, or dismissed as "just getting older", though it is treatable at any age. Anxiety disorders are roughly twice as common in women as in men,² and they are often under-recognised in men, who may describe irritability, sleep problems or overwork instead of worry.

What helps

Highly effective treatments for anxiety disorders exist.¹ The difficulty is not that anxiety cannot be treated, but that too few people get the treatment that works.

Talking therapies. Psychological therapy is a first-line treatment, which means it is offered before other options. The approach with the most evidence across the range of anxiety disorders is cognitive behavioural therapy (CBT).¹

CBT helps a person notice the thoughts that keep anxiety going, test them against reality, and gradually face feared situations rather than avoid them, so that the fear lessens.² Other evidence-based therapies can help too, and a good therapist will tailor the work to the person.

Medication. For some people, medication is a useful part of treatment. Antidepressants known as selective serotonin reuptake inhibitors (SSRIs) are commonly used and can be effective for anxiety disorders.¹

National guidelines set out a stepped-care approach, which matches support to how severe the anxiety is. The United Kingdom's National Institute for Health and Care Excellence (NICE) sets out such a plan, and lists an SSRI as one medication option among several.³ Whether medication is right for you, and which one, is a decision to make with a prescribing doctor, who will weigh the likely benefits, the possible side effects and your circumstances.

Everyday support. Regular physical activity, decent sleep, cutting back on caffeine and alcohol, breathing and relaxation practices, and staying connected to people all help to steady the nervous system. These sit alongside therapy and, where appropriate, medication; when anxiety is severe they support treatment rather than replace it.

Living with anxiety day to day

Progress comes and goes, and there are ways to make the days more manageable while treatment takes effect.

Many people find it helps to keep some structure to the day; breaking overwhelming tasks into smaller steps helps too. So does noticing the early signs that anxiety is rising, so you can respond before it builds.

Simple grounding techniques, which bring attention back to the present, can ease anxiety in the moment. Slow breathing does the same. It also helps to be honest with a few trusted people, so you are not managing it alone.

Patience with yourself on the harder days matters as well. Facing feared situations a little at a time, rather than all at once, gradually makes it possible to do more.

If someone you love is anxious

Watching someone you care about struggle with anxiety can leave you feeling helpless, but your support genuinely matters.

Listening without judging helps most. Take the anxiety seriously rather than telling them to "just relax", and be patient when the avoidance is frustrating.

Encourage them gently towards professional help. Practical support helps too, such as going along to a first appointment, without taking over. Try not to arrange life entirely around the anxiety, because that can quietly reinforce it.

Look after yourself as well. Steady, calm encouragement over time does more good than pressure.

When and how to get help

Professional help is worth asking for when anxiety is persistent, and when it gets in the way of work, study, relationships or sleep. Avoiding more and more is another sign, as is relying on alcohol or other substances to cope. You do not need to wait for a crisis to deserve support.

A family doctor or a mental health professional is a good place to start. Either can talk through what you are experiencing and what might help. If you would like to speak to a therapist, you can find a qualified professional near you or online through TherapyRoute. If at any point you feel unsafe or have thoughts of suicide, please use the crisis resources at the top of this page straight away.

Hope and recovery

Anxiety disorders are among the most treatable mental health conditions. Highly effective treatments exist,¹ and with the right support most people find that anxiety eases and daily life becomes manageable again. Wherever you are in the world, help is available, and no one has to face this alone.

This article is for general education and is not a substitute for professional advice, diagnosis or treatment. If you are worried about anxiety, please consider reaching out to a qualified mental health professional.

References

1. [1] World Health Organization (2025). Anxiety disorders - fact sheet. who.int/news-room/fact-sheets/detail/anxiety-disorders. who.int.
2. [2] Munir S, Takov V (2022). Generalized Anxiety Disorder. StatPearls, NCBI Bookshelf. ncbi.nlm.nih.gov/books/NBK441870. ncbi.nlm.nih.gov/books/NBK441870.
3. [3] National Institute for Health and Care Excellence (2020). Generalised anxiety disorder and panic disorder in adults: management (CG113). nice.org.uk/guidance/cg113. nice.org.uk.