How has a small nation of 9 million people, forced to fight for its existence and security since its founding and riven by ethnic, religious, and economic divides, proven resistant to so many of the societal ills plaguing other wealthy democracies? Why do Israelis have among the world's highest life expectancies and lowest rates of 'deaths of despair' from suicide and substance abuse? Why is Israel's population young and growing while all other wealthy democracies are aging and shrinking? How can it be that Israel, according to a United Nations ranking, is the fourth happiest nation in the world? Why do Israelis tend to look to the future with hope, optimism, and purpose while the rest of the West struggles with an epidemic of loneliness, teen depression, and social decline? Dan Senor and Saul Singer, the writers behind the international bestseller Start-Up Nation, have long been students of the global innovation race. But as they spent time with Israel's entrepreneurs and political