Sonja Lyubomirsky, professor of psychology at the University of California, and Marci Shimoff, a well-known transformational leader in the USA, presented in their books the results of research on the extent to which our level of happiness is genetically determined, how it depends on external conditions and to what extent it depends on ourselves.
These books are respectively:
The most important message of these books is extremely interesting. According to them, our level of feeling happy depends on:
50% from genetic conditions
40% of our intentional actions
in 10% of external conditions
Sonja writes in her book about the so-called "happiness set-point" we are born with.
It is an innate genetic trait that influences whether or not we are "naturally optimistic". This mechanism works in a similar way to the tendency to put on weight. Some people have no problem with it and, regardless of how much and what they eat, they are able to maintain an appropriate level of weight. Others, on the other hand, are constantly struggling with their excess weight, and their effort to keep their weight within the normal range is incomparably greater.
The conclusions of Sonja and Marci's books are supported by the results of numerous scientific studies. Sonja refers to them very precisely. They consisted, inter alia, of many years of observation of twins and the successive study of their happiness level. Others, in turn, checked the dependence on material status or personal relationships.
As for the vast majority of cases, the results are surprising.
For example, the level of happiness found among rich Americans (earning more than 1 million a year) was only slightly higher than that of those who were employed by these rich men, including workers.
Although marriage, in general, has a positive effect on "being happy", it turned out that its impact on personal happiness is relatively small: among people surveyed in 16 countries, 25% of people living in relationships and 21% of singles described themselves as "very happy" .
The key message can be read in different ways (which probably depends on our personal "happiness set-point")
On the one hand, UP TO 50% DOESN'T DEPEND ON US. On the other hand, ONLY 10% are external conditions and as much as 40% are our intentional actions.
How to use this 40%?
I encourage you to read these two books. They are, to a large extent, devoted to answering this very question. It would also be difficult for me to rewrite two several hundred-page bricks here.
However, below I will present the "How to?" proposed by Marci.
. . .
Marci writes in a very accessible way. And very inspiring. After all, he is an expert in the field of motivation. Her book also includes interviews with selected lucky people from all over the world. A total of 100 were conducted. The book itself was on the New Your Times bestseller list. Here is the 'How to' program she developed: