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This is the question that worries us all and that the longest and most successful happiness research is trying to answer. It has taken nearly 80 years to figure out the formula for life satisfaction, well-being, health, and longevity."

Harvard Adult Development Research leaders Robert Waldinger and Mark Schultz present a scientific look at what makes us happiest at different ages and what most determines our well-being. This groundbreaking work combines scientific rigour, conventional wisdom, incredible real-life stories and practical ideas to prove once and for all that our happiness is entirely up to us.

The book contains not only statistical and scientific data collected over 80 years, but also inspirational life stories and step-by-step instructions that will help you create your own happy life even in the most difficult times.

The authors of the book are well-known experts in the fields of psychiatry and philosophy who have compiled the book based on facts and scientifically proven data.