The thyroid is not a subject that immediately springs to mind when we chat socially about our health. We marvel how some people have boundless energy while others are always tired and weary. There are nervous, anxious, agitated people who can never sit still. It is easy to assume that people differ in these ways because of their characters or lifestyle but a substantial number have developed these characteristics through no fault of their own. These are the suffers from thyroid problems. Dr Tom Smith describes in his easily accessible style the symptoms, different types of thyroid problems, complications and the various treatments available today.