Diener et al.

Diener et al. conducted research on happiness and well-being, exploring what makes people feel satisfied with their lives. They introduced the concept of the "subjective well-being," which includes how people experience their lives emotionally and how satisfied they are with their overall life. Their work found that factors like positive emotions, meaningful relationships, and a sense of purpose contribute to happiness. The study emphasizes that well-being is subjective—based on individuals’ perceptions—and is influenced by social, psychological, and environmental factors, helping us understand what promotes a fulfilled and happy life.