Book excerpt: This book could save you years of ill health! Vitamin B12 definicency, often caused by pernicious anaemia, can be a devastating condition if left untreated, leaing to irreversible nerve damage and disability after years of exhaustion and mental 'fog'. Its symptoms creep up on sufferers and are under-recognised by doctors; tests to confirm it and underlying pernicious anaemia, are problematic. Martyn Hooper, the founder of the Pernicious Anaemia Society, now brings together vital information about the condition and real-life stories - including his own and those of many members of the society - that will help sufferers and their friends and fmailies recognise the condition and understand how best to tackle it. In particular, the book draws on the findings of a survey of society members that give new clarity to the complex issues involved.