Good book overall, though not without its problems. Any truly scientific book cannot present facts as a given, because science is always changing and evolving (as seen now, 20 years after its publication, it's become somewhat outdated). The only certainty in life is its uncertainty.
Some quick take aways:
- We need connection
- We desperately want security and to trust others
- We are driven by status
- Happiness improves health
- Even though living conditions in first-world countries have improved, happiness has not. Once a status quo has been achieved, we will always look to the next thing (next purchase, next pay raise, etc)
- We feel happier when we've the same or more (income, means, possessions, etc) as those around us
- Our inner self (thoughts, feelings, mental health, etc) is more involved in our happiness than exterior conditions
What helps?
- Stable relationships (family & friends) & sense of community
- Healthy habits (good nutrition, exercise, sleep and water intake)
- Good mental health (through habits like meditation, feelings of gratitude, positive psychology & education of the spirit)
- Work-life balance & steady income
- Education
- Having well-defined morals and values
- Pursuit of the common good
What doesn't help?
- Excessive media consumption (TV, social media, advertisements, technology in general)
- Excessive comparison to others who have more than us (income, status, etc)
- Unemployment