Emily Willroth, an assistant professor at Washington University in St. Louis, dives into the intriguing link between happiness and dementia. She discusses how social engagement, helping others, and fun physical activities can mitigate cognitive decline. With age as a risk factor, she emphasizes that happiness can serve as a protective factor against dementia. Willroth also highlights the importance of fostering supportive environments for older adults to enhance well-being, demonstrating that joy can indeed play a role in cognitive health.