A-Z of health information

Antioxidants scavenge free radicals from the body's cells, and prevent or reduce the damage caused by oxidation.

Antipsychotic medications work by altering brain chemistry to help reduce psychotic symptoms like hallucinations, delusions and disordered thinking

Anxiety is extreme worry that interferes with our daily lives. Find out more about anxiety disorders, treatments, trauma, triggers and phobias.

Improve your understanding of anxiety and depression, then take action.

You can help your child overcome anxiety by taking their fears seriously and encouraging them to talk about their feelings.

Anxiety disorders are common mental health problems that affect many people.

Anxiety disorders are common, affecting about one in ten with persistent, excessive worrying that can hinder their ability to function. They may worry constantly about things that do not warrant it or that may never happen.

Aortic stenosis may be congenital (present from before birth), but is often diagnosed during teenage years.

An appendectomy is usually carried out on an emergency basis to treat appendicitis.

Anyone of any age can be struck by appendicitis, but it seems to be more common during childhood and adolescence.