The podcast episodes discussed cover various aspects of cognitive health, including the potential benefits of language learning, the role of supplements and lifestyle factors, and the importance of making informed decisions about one's health.

For example, the episode "#144: Arnold And The Gettysburg Address" emphasizes the importance of challenging the brain through activities like language learning to maintain cognitive function and potentially delay age-related decline. The episode "Stop Wasting Your Money on These Longevity Supplements with Dr. Brad Stanfield" discusses the potential cognitive benefits of supplements like creatine and multivitamins, as well as the importance of lifestyle factors like diet, exercise, and sleep for longevity.

The episode "#129: Do You Need Carbs Before Your Workout?" also explores the potential cognitive benefits of multivitamin use, particularly for memory and cognitive function in older individuals.