Psychologists have conducted a comprehensive study analyzing 32,533 dad jokes to understand their appeal. They define a dad joke as a short, clean, and non-offensive pun, typically consisting of two sentences. The research indicates that the most successful dad jokes often revolve around themes such as nature, hospitals, and money, while topics like celebrities, politics, or religion are likely to be less well-received. Among the jokes rated for humor, the top three included relatable scenarios that highlight everyday mishaps. Dr. Paul Silvia from the University of North Carolina emphasized that dad jokes should be inclusive and appropriate, avoiding references to sensitive subjects like death or violence. The study also revealed that certain demographics, including men, pet owners, and individuals with higher education, tend to enjoy these jokes more. The researchers categorized the jokes into various types, such as homonym and homograph puns, showcasing the complexity behind what makes a dad joke funny. Their extensive database of jokes is now available for further academic exploration.