Introducing a powerful new psychological theory that will transform your life in an instant

Rip up this book and unleash your hidden potential

Most self-help books encourage you to think differently: to think yourself thin, imagine a richer self or to visualize the perfect you. This is difficult, time consuming and often doesn't work.

Ripping up the rule book, psychologist Richard Wiseman presents a radical new insight into your body and brain: actions are the quickest, easiest and most powerful way to instantly change how you think and feel.

Drawing on a dazzling array of scientific evidence, Professor Wiseman shows how this simple idea can be used to increase motivation, overcome depression, lose weight, stop smoking and even slow ageing.

So don't just think about changing your life. Do it.

- Smile and become happier

- Clench your fist and increase your willpower

- Put a spring in your step and feel instantly younger