What if saving the world was good for you?

That's my promise in The Happy Hero. That you can be happier and healthier simply by making a difference to the world around you. I call this formula 'positive+action', and after decades of researching, writing about and living positive+action I've become convinced this the answer to enjoying a better life. I want to tell you stories of the people who have already discovered this secret. And set out the principles for how to feel good by doing good.

Which sounds simple. Except that there's so much that needs to change, where do you even start? Everyday our media finds another international crisis or health scare, another predator or disaster. We are subject to an overwhelming barrage of fear and negativity each time we open our phones or switch on the TV. We have been trained out of happiness by these stories and turned into the victims of our own lives rather than the heroes. The Happy Hero will offer a simple solution: stop worrying about the world and start making it better. Because new research shows that trying to make a difference, even in the smallest ways, can extend your life, improve your relationships and even help you recover from a cold! And luckily, many of the changes we need to make to build a better world, we should want to do anyway. In The Happy Hero I'll share the emerging evidence of how heroism can make you happy. I'll also provide practical examples for getting started.

This book will even take on the most intractable and complicated problem facing all of us: climate change. And we'll discover how solving it will solve so much more. The UK's top medical journal recently reported that the best way to protect your heart and slim your waistline is to count the carbon rather than calories in your food. The US Military insists that renewable energy will make our countries energy independent and help reduce conflict by providing cheaper sources of power to the poorest. In our own lives, we know that saving energy simply saves money. Together we can cut even huge challenges like climate change down to size. And every step and every action will come with their own reward.