Harvard Study of Adult Development
The longest-running study of happiness, cited by Dr. Robert Waldinger regarding social media usage.
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Videos Mentioning Harvard Study of Adult Development

Harvard Professor: There Is a FORMULA to Happiness | Arthur Brooks
BigDeal by Codie Sanchez
An 85-year longitudinal study tracking people's happiness, health, and relationships.

The Long Game: A Conversation with Robert Waldinger (Episode #308)
Sam Harris
The longest scientific study of adult life, following participants from adolescence into old age to understand well-being and development.

The Science of Happiness: A Conversation with Laurie Santos (Episode #196)
Sam Harris
A long-running longitudinal study that tracks the lives of men from Harvard and Boston neighborhoods, demonstrating the crucial link between social relationships and health/longevity.

226 ‒ The science of happiness | Arthur Brooks, Ph.D.
Peter Attia MD
A longitudinal study mentioned for its findings that close personal lifelong friends are crucial for happiness if one does not have a spouse.

Dr Mike: The Top 10 Lies Health Experts Have Told You!
The Diary Of A CEO
The longest-running study of happiness, cited by Dr. Robert Waldinger regarding social media usage.

How To Build Lasting Happiness | Dr. Arthur Brooks
FoundMyFitness
A longitudinal study following cohorts for 85 years, identifying seven key factors correlated with happiness and health in old age.

Arthur Brooks on Reinvention, Religion, and the Science of Happiness | Conversations with Tyler
Conversations with Tyler
An 85-year study following a cohort since the 1930s, showing lifelong learners have better lives.