03 Dec The key to happiness
Psychology Today – Nigel Barber
Some of us are a lot more optimistic than others. There is no sugar-coating the fact that some people have happy genes and others do not. Geneticists estimate that genes are responsible for about 50 percent of the differences in how happy people say they are.
Genes make happiness fairly stable across the lifespan. A happy child often grows into a happy adult.
Still, happy genes have their limits. People can be, and are, crushed by traumatic experiences such as serving on the front lines in a war, or being the victim of violent crimes. Post-traumatic stress has many of the features of clinical depression, including intrusive unpleasant thoughts, agitation, and loss of interest in activities previously enjoyed.