Why do I vomit? : and other questions about digestion

This new series examines the human body by looking at the five main body systems. - Uses accessible questions to introduce the reader to how the human body works and what can go wrong with it - Common incidents that the reader my have experienced that put the subject in context. - Body fact boxes - Lists of further reading, non-fiction and fiction and other further resources including addresses of helpful contacts. - Factfile including a bodymap.