Alcohol dependence is a disease that involves addiction to alcohol. In addition to physical dependence, other psychological, genetic and social factors may contribute alcoholism.

Everybody knows what it's like to feel anxious – the butterflies in your stomach before a first date, the tension you feel when someone important to you is angry with you

ADHD is a disorder characterised by three primary symptoms: hyperactivity, impulsivity and inattention (difficulty focusing and sustaining attention).

Bulimia nervosa is an eating disorder characterised by cycles of binge eating and vomiting.

Chronic fatigue syndrome (CFS) is a complex disorder characterised by severe fatigue.

Delirium tremens ("the DTs") occurs when chronic drinkers suddenly stop drinking, or drastically cut down on their drinking.

Dysthymia is a long-lasting, less severe experience of depression symptoms.

Everybody worries at times. But in the case of Generalised Anxiety Disorder (GAD), an Anxiety Disorder, the person’s worries are much more than normal day-to-day anxiety.

Insomnia is the inability to sleep, or to sleep satisfactorily, and is the most common sleep disorder. It is an important health problem that deserves serious attention.

Post-traumatic stress disorder (PTSD) arises as an immediate, delayed and/or protracted response to a traumatic or stressful event.

One of the most misused psychiatric terms is the word "schizophrenia". This disease is often incorrectly used to describe a "split personality". This is a total misconception.

Tourette’s disorder is a condition involving tics of movement and speech.