Anxiety and Depression: Signs and Support

What is the difference between anxiety and depression?

Anxiety involves fear, apprehension or persistent worry, often alongside a physical stress response. It can be a normal response to uncertainty. An anxiety disorder is more than occasional nerves: the fear or worry becomes difficult to manage, disproportionate to the situation or associated with significant distress, avoidance or functional impairment.

Depression involves persistent low mood and/or a marked loss of interest or pleasure, called anhedonia. It can also affect energy, sleep, appetite, thinking, movement and self-worth. Depression is not simply sadness or a lack of motivation, and it may appear as irritability, numbness or withdrawal rather than crying.

Someone can feel constantly on edge yet struggle to get out of bed. Both can be true: anxiety and depression can co-occur (sometimes called comorbidity). Their shared symptoms can make self-diagnosis unreliable.

Signs that deserve attention

Notice what has changed, how long it has lasted and what you are no longer able to do. A stressful week may bring worry or sadness without a disorder. Persistent symptoms that interfere with everyday functioning warrant assessment, even if you still attend work or appear fine to others.

Anxiety symptoms

Common signs include excessive worry, nervousness, fear, restlessness, racing thoughts, irritability, difficulty concentrating, muscle tension and trouble sleeping. The body may respond with a pounding heart, sweating, nausea, dizziness or breathlessness. Some people avoid social events, transport, appointments or places they associate with panic. Others appear outwardly capable but spend hours checking, planning or seeking reassurance.

Depression symptoms

Depression may involve persistent low mood, loss of pleasure, hopelessness, guilt, feeling worthless, fatigue or low motivation. Changes in sleep, appetite and weight are common. Some people sleep much more; others wake early. Thinking can feel slow, or there may be agitation and irritability. Social withdrawal can reduce the support that might otherwise help. Thoughts of self-harm or suicide need prompt, compassionate attention rather than dismissal as “just a bad day”.

What if the symptoms are mostly physical?

Chest discomfort, palpitations, tiredness and poor sleep can accompany anxiety or depression, but they can also have physical causes. Thyroid problems such as hyperthyroidism, medication effects, substance use, sleep disorders and other medical conditions may contribute. New, severe or unexplained physical symptoms should be assessed medically; do not assume a symptom is caused by anxiety. For severe chest pain or serious breathing difficulty, call 111.

Different forms of anxiety and depression

The specific pattern affects which treatment is likely to be useful.

Anxiety-related conditions

Generalised anxiety disorder (GAD) involves persistent worry across several areas of life. Social anxiety disorder centres on fear of negative evaluation. Panic disorder involves recurrent unexpected panic attacks and concern about further attacks; agoraphobia can involve fear or avoidance of places where escape or help may seem difficult. Specific phobias centre on particular objects or situations. Separation anxiety and health anxiety can also substantially affect wellbeing.

A panic attack is a sudden wave of intense fear or physical distress, but a single panic attack does not automatically mean panic disorder. Obsessive-compulsive disorder (OCD) and post-traumatic stress disorder (PTSD) can share features with anxiety and require their own assessment.

Depressive conditions and presentations

Major depressive disorder (MDD) can involve an episode of significant depressive symptoms; persistent depressive disorder, sometimes called dysthymia, describes a longer-lasting depressive pattern. Depression may also occur during pregnancy (antenatal depression) or after birth (postnatal depression); together these sit within perinatal depression. Some people notice a recurring seasonal pattern, sometimes described as seasonal affective disorder (SAD).

Depression may be described as mild, moderate or severe according to symptoms, risk and impact on functioning. Periods of unusually elevated or irritable mood with increased energy and reduced need for sleep may suggest bipolar disorder, which must be considered before choosing treatment for depression. Unusual beliefs, hallucinations or marked confusion require urgent professional assessment, particularly if safety is affected.

Why can anxiety and depression develop together?

There is no single cause. Genetics and family history may contribute to vulnerability, while chronic stress can affect sleep, concentration, mood and the body's threat response. A person who becomes anxious may avoid activities and people that once brought connection or satisfaction; as life narrows, depressive symptoms can grow. Conversely, depression can make ordinary decisions feel overwhelming, increasing worry about work, money or relationships. This is one possible reinforcing cycle, not an explanation for every person.

Relevant experiences include childhood trauma, abuse, bullying, grief and bereavement, relationship conflict, financial stress, unemployment, workplace pressure, school demands, poverty, discrimination or social isolation. Chronic physical illness and persistent pain can also affect mental wellbeing. Alcohol and recreational drugs may worsen mood or anxiety, while high caffeine intake can aggravate restlessness and palpitations in some people. Social media stress and cultural disconnection may be important in a person's wider circumstances.

Symptoms do not always have an obvious trigger. Risk factors do not make a diagnosis inevitable.

How are anxiety and depression diagnosed?

A GP (general practitioner), nurse practitioner or qualified mental health clinician will usually ask about the nature, duration and severity of symptoms, your physical health, medication and substance use, sleep, life circumstances and the effect on daily functioning. A risk assessment may include direct questions about self-harm or suicidal thoughts. Depending on what you describe, a physical examination or blood tests may help rule out other causes. A psychologist or psychiatrist may be involved where a more detailed assessment or specialist treatment is needed.

Short questionnaires such as the GAD-7 for anxiety symptoms and PHQ-9 for depression symptoms can help track severity and changes over time. The Kessler Psychological Distress Scale (K10) measures broader psychological distress. These are screening and monitoring tools, not stand-alone diagnoses: scores must be interpreted alongside a clinical assessment.

For depression, clinicians often consider symptoms present for much of the day, nearly every day, over at least two weeks. Anxiety presentations have different diagnostic duration requirements. You do not need to wait for a particular timeframe if you feel unsafe, are struggling to function or need support.

How to prepare for a first appointment

Write down when symptoms began, how often they occur, sleep changes, any panic attacks, missed commitments and what you have already tried. Bring a list of medicines and supplements. You might say: “I have been worrying constantly and have stopped enjoying things. It is affecting my sleep and work. Can we assess both anxiety and depression and talk about support options?” You can bring a trusted friend or whānau member if you wish.

Treatment: what helps, and how do you choose?

Treatment depends on symptom severity, safety, previous treatment, access and what matters to you. This is often called stepped care: some people start with structured self-help or brief therapy; others need ongoing psychological treatment, medication, specialist input or a combination. You and your clinician can weigh the trade-offs and review progress together.

Talking therapies

Cognitive behavioural therapy (CBT) helps people notice unhelpful thinking and behaviour patterns and develop workable responses. For anxiety, this may include gradually facing feared situations rather than reinforcing avoidance; exposure therapy should be planned appropriately, particularly for severe fears or trauma-related symptoms. For depression, behavioural activation rebuilds manageable, meaningful activity even when motivation is low. Acceptance and commitment therapy (ACT) can help people make space for difficult thoughts while taking action consistent with personal values.

Counselling, psychotherapy and structured online CBT programmes may be appropriate depending on need. Online treatment is not a substitute for urgent assessment when someone is at immediate risk. If you have tried therapy without improvement, discuss whether the approach, therapeutic fit, frequency or diagnosis needs reviewing.

Medication

For some people, especially with persistent or more severe symptoms, a prescriber may recommend an antidepressant such as a selective serotonin reuptake inhibitor (SSRI) or serotonin-noradrenaline reuptake inhibitor (SNRI). Examples used in clinical practice include sertraline, fluoxetine, escitalopram, citalopram, paroxetine and venlafaxine; mirtazapine is another antidepressant with a different profile. These are examples, not a list to choose from independently. Suitability depends on medical history, interactions, side effects, pregnancy considerations and prior response.

Medication often takes several weeks to show its full effect. Some people initially experience nausea, sleep changes, agitation or other side effects; clinicians should explain what to watch for, arrange follow-up and check for worsening mood or suicidal thinking, particularly after starting or changing treatment. Do not stop or change prescribed medication abruptly without medical advice, because withdrawal symptoms or relapse may occur. If bipolar disorder is suspected, treatment choices need specialist consideration.

What if the first treatment does not help?

At a follow-up, discuss changes in symptoms, sleep and daily functioning, along with side effects, costs and any continuing stress. If progress is limited, ask whether the diagnosis or treatment needs reviewing. Your clinician might adjust the plan, offer a different talking therapy, reconsider medication or refer to specialist services. A relapse-prevention or wellbeing plan can identify early warning signs and steps to take before difficulties escalate.

Practical steps while arranging support

Self-care can help alongside treatment, but it is not a substitute for care when symptoms are severe or persistent. Start with one manageable action.

• Reduce the size of the task. If depression makes the day feel impossible, start with a shower, ten-minute walk or one message to a friend. A small activity may make the next task easier.
• Work gently with anxiety. Notice when avoidance or reassurance-seeking offers short-term relief but reinforces long-term fear. For manageable situations, consider gradual steps with appropriate support.
• Protect sleep. Keep a broadly regular wake time, allow wind-down time and seek help for persistent insomnia. Poor sleep can both worsen and result from anxiety and depression.
• Use grounding and breathing. Slow, comfortable breathing or naming things you can see and hear may help you reconnect with the present moment. If focusing on breathing increases panic, try an external grounding exercise instead.
• Support your body. Regular physical activity, adequate food and social connection can help mental wellbeing. Reduce alcohol and consider whether caffeine worsens physical anxiety symptoms.
• Track patterns without judging yourself. A short mood diary or journal can record sleep, triggers, activities and changes that matter to you. Share useful observations with your clinician.

If mindfulness or breathing exercises make you feel worse, stop and ask a professional about another approach.

Where to get help for anxiety and depression in New Zealand

In Aotearoa, your GP or primary care team is a practical starting point for assessment, treatment and referrals. Depending on eligibility and local availability, community-based support may also be accessible through Access and Choice services. Ask about cost, waiting times, online appointments and options that suit your language, culture, disability access needs or rural location.

• 1737 - Need to Talk?: free, confidential, 24/7 brief emotional support by calling or texting 1737. It is not an emergency response service.
• Health New Zealand - Te Whatu Ora: information about GP access, urgent mental health support and local services.
• Mental Health Foundation of New Zealand: mental wellbeing information and help-finding resources.
• Healthify: New Zealand-focused health information on conditions and treatments.
• Depression.org.nz: information and practical support for people experiencing depression or anxiety.
• Anxiety NZ: anxiety-related information and services; check current eligibility and availability directly.
• Just a Thought, Small Steps and SPARX: digital self-help or therapeutic resources with different purposes and intended audiences; check which is suitable before starting.
• The Lowdown and Youthline: youth-oriented mental health information and support pathways.

If you are unsure whether a physical symptom needs medical assessment, Healthline 0800 611 116 provides health advice. For an acute mental health emergency, contact your local mental health crisis team, go to an emergency department or call 111 when there is immediate danger.

Support that fits your identity and whānau

A symptom score does not capture everything that matters in mental health care. For Māori, hauora and te ao Māori perspectives may include whānau relationships, cultural identity and connection to community. Ask about kaupapa Māori services if that approach is right for you. Pacific peoples may also prefer culturally grounded support. Rangatahi (young people), tamariki (children), Rainbow communities, disabled people and people living in rural areas can have different needs and barriers to access. These considerations affect how support is delivered; they should not be treated as assumptions about an individual.

How to support someone who is struggling

Start with a specific observation rather than a label: “You seem more withdrawn and haven't been sleeping well. Would you like to talk?” Listen without arguing about whether their worries are rational or insisting they should cheer up. Ask what practical help would be useful: arranging a GP appointment, going together, sharing a meal or checking in later.

If they mention suicide or self-harm, ask directly whether they are thinking of harming themselves and whether they are safe right now. Take their answer seriously. If danger is immediate, call 111 and stay with them if it is safe to do so until appropriate support arrives. Respect privacy where possible, but do not promise secrecy when someone is at serious risk. Whānau and peer support can matter greatly, while professional assessment remains important when symptoms are severe.

When to seek urgent help

Call 111 immediately if there is imminent danger of suicide, serious self-harm, violence or another life-threatening emergency. A local mental health crisis assessment team or emergency department can help with urgent mental health needs. If you have thoughts of suicide but no immediate danger, reach out promptly to a health professional or crisis service, tell someone you trust and work on a safety plan rather than managing it alone. For non-emergency emotional support, call or text 1737.

Common questions

Can I have anxiety and depression at the same time?

Yes. Worry, tension and avoidance can coexist with low mood, hopelessness and loss of interest. A clinician can assess both patterns and recommend a treatment plan that addresses them together.

Is anxiety or depression worse?

The diagnosis alone does not show how much someone is struggling. Severity depends on distress, daily functioning, duration, physical health and safety. A person with either condition may need substantial support.

Can anxiety cause depression?

Long-running anxiety can contribute to isolation, poor sleep and reduced enjoyment, which may increase depressive symptoms. Depression can also heighten worry. The relationship is complex and not always causal.

Will anxiety and depression go away on their own?

Some symptoms improve as circumstances change, but persistent or impairing symptoms should not be left untreated in the hope that they disappear. Early assessment can reduce uncertainty and clarify the most appropriate next step.

Do I have to take antidepressants?

Not necessarily. Talking therapies and structured interventions are important treatment options. Medication may be recommended depending on severity, previous response, personal preferences and health history. Discuss the balance of benefits and risks with a qualified prescriber.

What if I cannot afford private therapy?

Ask your GP or local primary care provider about publicly funded or low-cost support, including Access and Choice where available. Digital programmes and free helplines may provide additional support, although they are not equivalent to specialist care for everyone.

How do I know whether treatment is working?

Check changes over several weeks rather than judging treatment by one day. You and your clinician can review symptoms, sleep, avoidance, enjoyment, work or study participation, relationships and safety over time. Repeat PHQ-9 or GAD-7 scores can help monitor progress but are only part of the picture.