The How of Happiness

Sonja Lyubomirsky begins with a question many people have asked themselves while standing in line at the bank or riding a crowded bus: is happiness something you are born with, or is it something you can train? If it is genetic luck, all you can do is accept your factory settings. If it takes practice, it is worth a try.

Published in 2007, the book tries to answer that question through research. The author does not promise permanent joy or a life free of sadness. Instead, she proposes a list of activities that, according to studies, boost the feeling of well-being a little bit and for a longer period, provided they are done regularly and by personal choice.

In plain language, it is a handbook of habits. Each chapter introduces a strategy, explains the experiments behind it, and suggests exercises. The biggest novelty at the time was bringing the language of the laboratory to a topic that had always been dominated by self-help slogans.

The most cited part of the book is a breakdown into three slices. According to the author, about half of the differences in happiness between people can be explained by genetics, acting like a baseline. Around ten percent comes from life circumstances, such as income, housing, and where you live. And roughly forty percent comes from what a person does intentionally.

The encouraging message is that forty-percent slice: a sizable share is left up to our behavior and mindset. It is not about becoming a different person, but about making good use of the wiggle room we actually have.

This chart is the book's most memorable idea and also its most controversial. When we get to the criticisms, we will see that the mathematical interpretation behind it is debatable, even if the broader message that habits matter has solid backing.

The author uses the term set point to describe the level of happiness each person tends to return to. Some people are naturally more upbeat, while others seem more serious, even when times are good. Twin studies cited in the book suggest that genes influence this temperament.

It brings to mind that coworker who laughs at everything and the aunt who finds nothing funny. It does not mean one is good and the other is bad. It simply shows that we start from different places, and that comparing your mood to your neighbor's can be unfair.

The book emphasizes that a starting point is not destiny. Within a certain range, habits can pull your level up or down. Someone born more introspective can still experience days of deep satisfaction, as long as they cultivate what suits them.