Book excerpt: In a fast-paced world, many people turn to caffeine to stay energised. Over 80 per cent of adults in the UK use caffeine every day, but when does this habit become a reliance? Caffeine is a bitter addictive drug which attacks the central nervous system and makes you jittery. Fooling you into thinking you are more alert, caffeine will often disrupt your sleep and actually increase overall fatigue. Quite simply, it's bad for you with no real benefits. In this concise pocket book, Allen Carr addresses the difficulties that coffee-drinkers and fizzy drink consumers face in trying to quit caffeine. By explaining what caffeine does to your body, and providing simple step-by-step instructions to free you from your addiction, Carr shows you how to lead a happier, healthier and more chilled life.