Mental health affects emotions, thoughts, relationships, sleep, behavior and the ability to manage everyday life. Mental health conditions are common and effective treatments are available. Use the links below to read about common conditions and sources of support.
Common mental health conditions
- Anxiety Disorders — persistent or excessive fear and worry that can interfere with daily life.
- Social Anxiety Disorder — intense fear or anxiety related to social situations.
- Obsessive-Compulsive Disorder (OCD) — recurring intrusive thoughts and repetitive behaviors or mental acts.
- Post-Traumatic Stress Disorder (PTSD) — symptoms that can develop after experiencing or witnessing trauma.
- Psychosis — a condition involving changes in perception, thinking and understanding of reality.
- Schizophrenia — a long-term mental health disorder that can affect thinking, perception, emotions and behavior.
- Borderline Personality Disorder — a condition involving difficulties with emotions, relationships and self-image.
Eating and addictive disorders
- Anorexia Nervosa — an eating disorder involving food restriction, fear of weight gain and significant health risks.
- Bulimia Nervosa — an eating disorder involving episodes of binge eating and compensatory behaviors.
- Alcohol Use Disorder — problematic alcohol use that causes impairment, distress or health consequences.
- Gambling Disorder — persistent gambling behavior that causes significant personal, financial or social harm.
Stress, sleep and wellbeing
- Stress — the body and mind’s response to demands or pressures.
- Insomnia and Sleep Problems — difficulty falling asleep, staying asleep or obtaining restorative sleep.
- Grief and Bereavement — emotional and physical responses following a significant loss.
When to get urgent help
Seek immediate emergency help if you or someone else is in immediate danger, has seriously harmed themselves, has taken an overdose, or cannot stay safe. Severe confusion, extreme agitation or rapidly worsening psychotic symptoms may also require urgent assessment.
Assessment and treatment
Mental health care may include psychological therapies, medicines, practical and social support, lifestyle measures or specialist treatment. The most appropriate approach depends on the condition, severity, personal circumstances and preferences.
Sources and further reading
Last reviewed: 4 September 2026. This page provides general health information and does not replace individual mental health assessment, diagnosis or treatment.