Understanding Depression and Anxiety

No. Depression is diagnosed by a specific pattern of symptoms that must be present most of the time for at least two weeks, cause significant impairment, and not be better explained by another condition. Typical features include persistent low mood or emptiness, inability to feel pleasure (anhedonia), and changes in sleep, appetite, and energy — not simply feeling sad after a difficult event. Many people with depression describe feeling nothing rather than feeling sad.

Everyone worries. Clinical anxiety disorders are characterised by worry or fear that is persistent, difficult to control, disproportionate to the actual situation, present across multiple areas of life, and causing significant impairment. The key markers are chronicity, pervasiveness, and the degree to which anxiety interferes with functioning — not simply the presence of concern or stress.

Some milder episodes do resolve without formal treatment. However, untreated depression has a high risk of recurrence — each episode makes future ones more likely. It also causes significant impairment during the episode, increases risk of self-harm, and damages relationships, careers, and physical health. Treatment significantly shortens episodes and reduces recurrence risk, which is why early intervention matters.

Antidepressants are not addictive — they do not produce the craving, tolerance, or compulsive use associated with addictive substances. Some require gradual reduction when stopping to avoid discontinuation effects, but this is pharmacological in nature, not psychological dependence. When prescribed and monitored appropriately, they have a well-established safety record. Any decision to use medication is always discussed in detail, including expected effects, timeline, and plan.

This varies by severity, whether it is a first episode or recurrence, co-occurring conditions, and individual response. Psychotherapy for depression or anxiety typically runs 8–16 sessions. Medication, if used, typically needs 4–6 weeks to show full effect. Most people with a first depressive episode who receive treatment see significant improvement within 3–6 months. Anxiety disorders often respond faster to focused treatment.

Yes. Depression and anxiety affect children from early childhood, with rates increasing significantly in adolescence. Depression in children often presents differently from adults: irritability, school refusal, physical complaints (headaches, stomach pain), and loss of interest in play rather than explicit sadness. Adolescent depression can be mistaken for typical mood changes, which delays appropriate treatment.

Tell someone — a clinician, a trusted person, or emergency services. Having these thoughts does not mean you are dangerous or broken; it means you need support urgently. In a crisis, contact emergency services. If you are in contact with a clinician, let them know at the next opportunity — or contact us to have your appointment moved forward. If you are unsure whether what you are experiencing constitutes a crisis, err on the side of reaching out.

Yes — this is common rather than exceptional. Up to 50% of people with depression also meet diagnostic criteria for an anxiety disorder. When both are present, accurate assessment is important because the treatment approaches, while overlapping, differ in emphasis. A formulation that identifies both conditions and how they interact in this person guides a more effective care plan.

The main types: Major Depressive Disorder (MDD) — the most common, with episodes of at least two weeks. Persistent Depressive Disorder (dysthymia) — chronic low mood for two years or more. Postpartum depression — following childbirth. Seasonal Affective Disorder (SAD) — linked to reduced winter light. Depression in bipolar disorder — a critical distinction from MDD because treatment differs. Treatment-resistant depression (TRD) — inadequate response to standard treatments.

Women are roughly twice as likely as men to develop depression — hormonal changes (menstrual cycle, pregnancy, menopause) play a role. Men often express depression through irritability, aggression, overwork, or increased alcohol use rather than visible sadness. These differences in presentation mean depression in men is frequently unrecognised and undertreated.

Postpartum depression is distinct from "baby blues" (normal sadness in the first 3–5 days after birth). Symptoms persist for more than two weeks and include inability to care for the newborn, sometimes thoughts of self-harm or harm to the baby. Fully treatable — psychotherapy, medication (many options compatible with breastfeeding), or both. The most important step: talking to a doctor and not dismissing it as a sign of failure as a mother.

PHQ-9 (Patient Health Questionnaire, 9 items) — the most widely used global screening instrument. Beck Depression Inventory (BDI) — a severity assessment tool. Hamilton Rating Scale (HDRS) — typically used by a clinician. These tools are useful but a high score alone is not a diagnosis — clinical interview and ruling out physical causes are essential.

CBT (Cognitive Behavioural Therapy) targets the relationship between thoughts, emotions, and behaviour. It has the strongest research evidence for depression and anxiety — in many studies it matches medication in effectiveness. Typically 8–16 sessions. An important advantage: the skills learned also help prevent relapse in future.

Yes — for mild to moderate depression, psychotherapy alone is often effective. CBT and IPT have the strongest evidence. Regular exercise also has a proven antidepressant effect. For severe or treatment-resistant depression, the combination of medication and psychotherapy is more effective than either alone. The decision should be based on severity, history, and individual preference.

TRD refers to inadequate response to at least two adequate trials of different medications. Around 30% of people with depression follow this pattern. Options include: medication optimisation, switching drug class, augmentation strategies, TMS, and in specific cases ECT. Treatment-resistant does not mean untreatable.

Regular aerobic exercise — at least 3 times per week, 30 minutes — has a proven antidepressant effect that in some studies matches sertraline (a common antidepressant). Mechanism: increased serotonin, BDNF, and endorphins. Also effective for anxiety. Exercise does not replace specialist treatment but is a valuable component of a treatment plan.