What Causes Anxiety? Biology, Stress, Trauma, Relationships and Uncertainty

Education and safety note. This page is for general information. It cannot diagnose you, assess your individual risk, or replace care from a qualified professional. If you are in immediate danger, may harm yourself or someone else, cannot stay safe, or have symptoms that may be medically urgent, contact local emergency services or crisis support. In Ireland, call 112 or 999 or go to the nearest emergency department; you can also read the HSE crisis guidance. Medication decisions need to be discussed with a qualified prescriber.

Introduction

You will not find a single tidy cause for anxiety. It is an amalgam of things: biology, temperament, stress, trauma, the way one has learned to cope, uncertainty in relationships or health, and even substance use or lack of sleep. All of these can feed into it.

The right way to put it is with some nuance and reassurance. Anxiety is no more a character flaw than it is purely a matter of chemistry, or childhood, or a person's thinking style.

What You May Be Looking For

In Plain Language

There is a certain sensitivity in some people's threat systems or a family vulnerability. Then there is learning; the brain can be taught to fear by repeated stress or frightening encounters. Current circumstances play a part too – burnout, grief, illness or money worries may put the baseline up. And meaning is a factor: anxiety has a way of clustering around the things we value most.

Common Patterns

Frame these as examples, not as a diagnosis. Use words like "can" or "for some people". You can reduce the sense of isolation by naming common patterns without telling the reader who they are.

What Feeds the Problem

It is useful for the reader to understand the loop. Avoidance might protect you for a while but it sustains the fear. An intolerance of uncertainty can turn the ordinary into a threat. Or body fear can make normal sensations into triggers. This is where you move from blame to something workable.

The person wants to know why now.
They look for one explanation.
They overlook contributors like alcohol or conflict.

What May Help

Do not be prescriptive. Offer gentle options:

Try to map the layers of it: the body, the mind, your history and behaviour.
Ask yourself what has been building over time and what has changed of late.
If it is hard to understand it, or linked to trauma, consider therapy.
Have a medical review if you suspect physical illness or medication effects.

Small, believable suggestions are better than promises of a quick fix. And where there is any question of safety risk, pregnancy, psychosis or mania, steer the reader toward appropriate assessment.

The Role of Psychotherapy

A good therapist can help you go from asking "why am I like this?" to seeing what is understandable and what can be put right. By slowing the pattern down, you can observe it and try a different response. Whether it is working through avoidance, beliefs, shame or simply changing how you communicate, it can be effective.

On Jonathan's site we keep the service prompt unpressured: if your wellbeing or work is being affected, a conversation with a qualified counsellor is worth having. Link to the relevant pages for fees and contact only where it makes sense.

As for the research by Jonathan Haverkampf, present it for those interested in his communication-focused approach. But let the independent, peer-reviewed sources stand as the clinical evidence. Make sure to link to our other material on the basics of anxiety, trauma and related areas.

When to Seek More Urgent, Medical or Specialist Help

Severe anxiety with suicidal thoughts, psychosis, mania, intoxication, withdrawal or medical red flags needs urgent or specialist support.

If a reader is in immediate danger, cannot stay safe, may harm themselves or someone else, or has symptoms that could be medically urgent, they should contact local emergency services or crisis support. In Ireland, emergency help is available through 112 or 999, or the nearest emergency department. For medication questions, medication decisions need to be discussed with a qualified prescriber.

A Few FAQs

Is this page enough to tell me what I have?

No, not in itself. While it can help with orientation and terminology, this page cannot diagnose you or assess your personal risk here. For that you need a qualified professional who can consider the whole situation – your history, physical state, any medications or substances, stress levels, cultural context, relationships and whether you are safe.

Is therapy an option?

It can be if you find the pattern is one that lingers, confuses or distresses you, or if it is getting in the way of your day-to-day life and relationships. You will get the most out of it when the process is a joint effort and you are comfortable asking questions about the methods, boundaries and what the work is aiming for.

I would be embarrassed to ask for help.

Sources and review. Published or updated in May 2026. This page is educational and uses public-health, guideline, peer-reviewed, or professional sources where clinical claims are made.