Key Ideas

1. Happiness is a result of intentional effort: In this book, Sonja Lyubomirsky argues that happiness is not just a result of circumstance or genetics, but rather a product of intentional effort and actions. She provides evidence and strategies to help readers increase their happiness.

2. The Set Point Theory: Lyubomirsky discusses the set point theory, which suggests that each individual has a baseline level of happiness to which they tend to return over time, despite life events and circumstances.

3. Happiness is influenced by both internal and external factors: According to Lyubomirsky, h....
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