Der Glücks Faktor. Warum Optimisten länger leben

Seligman’s approach emphasizes strengths and gratitude—I'm curious what personal experiences or research led him to this perspective.

Some techniques felt simple but powerful, while others seemed harder to implement. I wonder how effective they are in everyday life for different people.

The book references numerous studies—I'm interested in how he selected which ones to highlight and whether he personally conducted any of the research.