Depression

Quick answer. Depression can affect mood, interest, sleep, energy, concentration and daily life. Major depression usually involves symptoms lasting at least two weeks, but you can ask for help sooner. Treatments include psychotherapy and, for some people, medication. Medication decisions need to be discussed with a qualified prescriber. In immediate danger or if you cannot stay safe, call 112 or 999 in Ireland; elsewhere use your local emergency number. For other urgent support, see HSE guidance. Samaritans on 116 123 offers listening support; it does not replace emergency care.

Very little energy today? Start with one manageable choice. If you have already asked for help, the waiting-for-support guide may make the next contact easier.

Assessment, causes and urgent-help wording updated with sources checked 23 September 2026. Educational information, not a personal assessment. Disclaimer.

Depression Guides and Support Routes

These newer guides help readers move from broad depression information into self-reflection, high-functioning depression, support options and therapy routes.

• Do I have depression? A safe self-reflection guide
• High-functioning depression
• Help with depression
• Depression therapy in Dublin and online
• Free and low-cost counselling in Ireland

Depression Support: Understanding, Safety and Next Steps

When depression is part of life, people often need more than a symptom list. It can help to know where to find reliable information, what support routes exist in Ireland, and when personal professional help may be important.

Start with support

• Help with depression
• HSE clinical depression information
• Aware depression support and education

Understand the pattern

• Depression topic hub
• Depression in Ireland
• NIMH depression information
• NICE depression guidance

Consider personal help

• Depression therapy and counselling
• Make an appointment
• Contact

If you might harm yourself or someone else, or you feel unable to stay safe, contact local emergency services or urgent mental-health support now. This page is not a crisis service or a substitute for diagnosis or personal medical advice. For source and review boundaries, see how this mental health information is written and reviewed and the disclaimer.

Depression is more than feeling sad or having a difficult week. It can bring a persistent heaviness that touches mood, energy, sleep, motivation, and the ability to find pleasure in things that usually matter. Many people live with it for months or years before seeking help, and many feel they should be able to manage alone. You do not have to.

Choose a depression route

Depression can show up as low mood, loss of interest, exhaustion, sleep change, postnatal distress, or more urgent symptoms. These routes separate common questions from help routes.

Information guides

• Depression in Ireland
• Postnatal depression in Ireland
• Is depression genetic?
• Vitamins, tiredness, and depression

Help and higher-risk symptoms

• Psychotic depression
• Depression therapy and counselling in Dublin
• Online Therapy Ireland
• Find help for mental health

Major depressive disorder (MDD) involves a sustained pattern of symptoms, including low mood or reduced interest or pleasure, that affects daily life. A difficult event can precede an episode; its presence does not rule out major depression. Some people feel sadness, others numbness, and many experience both. Assessment considers the whole pattern and other possible explanations. See NIMH depression information.

Depression is common worldwide, but estimates vary by country, age group, measurement method, and whether studies measure symptoms, diagnosis, or service contact. For readers, the practical question is less the exact percentage and more whether low mood, loss of interest, hopelessness, sleep or appetite change, self-criticism, or loss of functioning is persisting and narrowing life. Current global and country-level resources are linked in the expert-source section above.

The many forms of depression

Depression can come in many forms and guises. A mental health professional can help you to identify more closely if you are suffering from depression and which pattern you are experiencing. Some ups and downs are a normal part of life. Life does not come in a straight line, which is actually good news, because a straight line would mean that we miss out on the excitement, the feeling alive, that life also offers. However, if the lows, or the highs in those suffering from a bipolar condition, take on intensity or frequency that reduces your quality of life or ability to perform everyday tasks, you should consult a mental health professional.

Melancholic features describe a pattern that can include profound loss of pleasure and marked changes in sleep, movement or appetite; these features can be substantial and deserve careful assessment. Persistent depressive disorder, historically called dysthymia, involves long-lasting depressive symptoms, generally at least two years in adults, and can substantially affect life. Depression may be episodic or persistent. A qualified professional can help clarify the pattern and suitable care. See the Merck clinical overview.

How depression is assessed

An assessment looks at the pattern, duration and impact of symptoms, together with the person’s history and circumstances. A symptom count alone cannot establish a diagnosis. A clinician may ask about changes such as:

1. Persistent low, empty or irritable mood.
2. Less interest or enjoyment in usual activities.
3. Changes in appetite or weight.
4. Difficulty sleeping or sleeping much more than usual.
5. Noticeable restlessness or slowing of movement and speech.
6. Low energy or fatigue.
7. Feelings of worthlessness or excessive guilt.
8. Difficulty concentrating, thinking or making decisions.
9. Thoughts of death, suicide or self-harm, which deserve prompt support.

A qualified healthcare professional can consider how symptoms affect daily life and whether physical illness, medication or substance effects, grief, trauma or another condition may be involved. It is important to mention any periods of unusually elevated or irritable mood, increased activity or much less need for sleep, because bipolar disorder requires a different assessment. You can seek help even if you do not recognise every symptom here. See NICE assessment guidance.

Depression can follow stressful events and can occur alongside trauma-related conditions such as PTSD. These experiences may overlap but require careful assessment rather than assuming that one label explains everything. The following trauma guides offer further information and support routes:

Trauma and PTSD information

Trauma-related symptoms can overlap with low mood, but they may need a different assessment and support pathway.

• Trauma information — An overview of trauma responses and related guides.
• PTSD symptoms and trauma responses — Symptoms, overlap and careful next steps.
• Help after trauma — A support-oriented route with safety boundaries.

Suicidal Thoughts

Suicidal thoughts deserve compassionate support. You do not have to manage them alone or find perfect words before asking for help. If you are about to harm yourself or someone else, cannot stay safe, or there is a medical emergency, call 112 or 999 in Ireland or go to the nearest emergency department. Elsewhere, use your local emergency number. If you are having suicidal thoughts without immediate danger, contact a GP, out-of-hours GP, mental-health team or crisis service promptly; tell someone you trust if you can. In Ireland, Samaritans on 116 123 offers listening support, and Pieta provides crisis support on 1800 247 247. These do not replace emergency care. See HSE urgent-help routes. Do not wait for a routine appointment or website reply.

A Vicious Cycle

Depression can make contact with others, daily tasks and asking for help harder. This can leave someone with less support at the very time they need it. Recovery does not depend on willpower or doing self-help perfectly. Psychological treatment, medication when appropriate, practical support and changes to difficult circumstances may each have a role. A qualified professional can help choose an approach that fits the person and review it if it is not helping.

Causes

Depression can develop through an interaction of genetic, biological, environmental and psychological factors. Family history, stressful experiences and physical health may all be relevant, but they do not determine one person’s future. An assessment can also consider medication or substance effects. See NIMH depression information.

Some other common symptoms of depression

Major depression significantly affects a person’s family and personal relationships, work or school life, sleeping and eating habits, and general health. [7] Its impact on functioning and well-being has been compared to that of other chronic medical conditions such as diabetes. A person having a major depressive episode usually exhibits a very low mood, which pervades all aspects of life, and anhedonia, the inability to experience pleasure in activities that were formerly enjoyed. Depressed people may be preoccupied with, or ruminate over, thoughts and feelings of worthlessness, inappropriate guilt or regret, helplessness, hopelessness, and self-hatred. [8] In severe cases, depressed people may have symptoms of psychosis. These symptoms include delusions or, less commonly, hallucinations, usually unpleasant.[9]

Other symptoms of depression include

• poor concentration and memory
• withdrawal from social situations and activities
• reduced sex drive, irritability,
• insomnia
• and thoughts of death or suicide (which requires immediate professional help).

Insomnia is a common symptom. In the typical pattern, a person wakes very early and cannot get back to sleep.[25] Hypersomnia, or oversleeping, can also happen.[25] Some antidepressants may also cause insomnia due to their stimulating effect.[26]

A depressed person may report multiple physical symptoms such as

• fatigue
• headaches, or
• digestive problems.

Appetite often decreases, with resulting weight loss, although increased appetite and weight gain occasionally occur. Family and friends may notice that the person’s behavior is either agitated or lethargic.

Causes

 

The biopsychosocial model proposes that biological, psychological, and social factors all play a role in causing depression.

Depression has multiple contributing factors. Genetics, biological processes, experiences, relationships, physical health and social circumstances can interact differently for different people. Research continues into the brain systems involved; a single neurotransmitter explanation cannot describe every person’s depression. See NIMH’s overview.

Antidepressants affect brain signalling in several ways, and their effects are more complex than a simple chemical explanation. They can help some people, but suitability, benefits, side effects and stopping arrangements need individual discussion. Medication decisions need to be discussed with a qualified prescriber; do not stop or change a prescribed medicine on the basis of this page. Read the Royal College of Psychiatrists information on antidepressants.

For further articles on depression on this site:

Selected depression guides and next steps

These pages offer orientation and routes to support; they do not diagnose an individual reader.

• Do I have depression? — A gentle self-reflection guide, not a diagnostic test.
• High-functioning depression — When someone appears to function while feeling persistently low.
• Depression in Ireland — Irish information, support and urgent-help routes.
• Help with depression — Practical next steps and professional-support options.
• Depression therapy in Dublin and online — A private psychotherapy and counselling route.

 

[1] HSE: clinical depression symptoms; NIMH: depression. Source links reviewed May 3, 2026.

[2] American Psychiatric Association (2013), Diagnostic and Statistical Manual of Mental Disorders (5th ed.), Arlington: American Psychiatric Publishing, pp. 160–168, ISBN 978-0-89042-555-8

[3] Richards, C. Steven; O’Hara, Michael W. (2014). The Oxford Handbook of Depression and Comorbidity. Oxford University Press. p. 254. ISBN 9780199797042.

[4] Lynch, Virginia A.; Duval, Janet Barber (2010). Forensic Nursing Science. Elsevier Health Sciences. p. 453. ISBN 0323066380.

[5] Global Burden of Disease Study 2013, Collaborators (22 August 2015). “Global, regional, and national incidence, prevalence, and years lived with disability for 301 acute and chronic diseases and injuries in 188 countries, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013.”. Lancet (London, England). 386 (9995): 743–800. doi:10.1016/S0140-6736(15)60692-4. PMID 26063472.

[6] Kessler, RC; Bromet, EJ (2013). “The epidemiology of depression across cultures.”. Annual review of public health. 34: 119–38. doi:10.1146/annurev-publhealth-031912-114409. PMC 4100461. PMID 23514317.

[7] Depression (PDF). National Institute of Mental Health (NIMH).

[8] American Psychiatric Association 2000a, p. 349

[9] American Psychiatric Association 2000a, p. 412

© 2012, 2016 Dr Christian Jonathan Haverkampf. All rights reserved.

jonathanhaverkampf@gmail.com

Psychotherapy & Counselling, Communication, Medicine (Psychiatry); Dublin, Ireland

For psychotherapy, counselling and communication coaching visit jonathanhaverkampf.com, www.jonathan-haverkampf.com, www.wordnets.com.

This article is solely a basis for academic discussion and no medical advice can be given in this article, nor should anything herein be construed as advice. Always consult a professional if you believe you might suffer from a physical or mental health condition.

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Reflective resources for mood and meaning

Books and films cannot replace personal care, but they can sometimes help with language, perspective, and gentle reflection. The mental health movies guide and the guide to books for anxiety and overthinking show ways to use stories, workbooks, and reflective notes alongside psychotherapy or counselling.

Related Guide: Social Rhythm Therapy

Where sleep, routine, relationships, and mood changes seem closely connected, the guide to social rhythm therapy explains IPSRT and how rhythm disruption can be discussed safely in therapy, especially around bipolar disorder and mood stability.

Frequently asked questions

What is depression?

Depression is a common mental health condition involving persistent low mood and/or loss of interest or pleasure, usually for at least two weeks, together with changes in sleep, appetite, energy, concentration, and self-worth. It is more than ordinary sadness, it is not a sign of weakness, and it is treatable.

What are the common symptoms of depression?

Symptoms can include low or flat mood, loss of interest or pleasure, tiredness or low energy, changes in sleep and appetite, difficulty concentrating or making decisions, feelings of worthlessness or guilt, hopelessness, and sometimes thoughts of death or self-harm. People can experience depression differently.

When should I seek help for depression?

Speak with a GP or qualified mental-health professional if low mood persists, returns, worsens or affects daily life. You do not have to wait two weeks or become severely unwell before asking for support. Thoughts of suicide or self-harm need prompt human help; if you cannot stay safe or there is immediate danger, use emergency services now.

What helps with depression?

Many people benefit from psychological treatments such as cognitive behavioural therapy (CBT) or interpersonal therapy. Treatment choices depend on symptoms, severity, previous experiences, health and preferences. Medication can also help some people; medication decisions need to be discussed with a qualified prescriber. Read about depression therapy and counselling in Dublin and online and discuss what care fits your situation.

When should I get urgent help for depression?

If you are in immediate danger, cannot stay safe or may have a medical emergency, call 112 or 999 in Ireland; elsewhere use your local emergency number. For suicidal thoughts or a mental-health crisis without immediate danger, contact a GP, out-of-hours GP, your mental-health team or a crisis service promptly. Ireland also has Samaritans listening support on 116 123 and Pieta crisis support on 1800 247 247. See HSE urgent mental-health support. Do not wait for a routine booking or online reply.