In probably Bryan's best-known stunt in pursuit of a longer life, Bryan and his family decided to trade blood plasma. In 2023, Bryan, his father Richard, and his son Talmage flew out to Dallas to have their blood drawn, separated into plasma, and then passed up a generation. Bryan's blood plasma was injected into Richard, and Talmage's blood plasma was injected into Bryan. The hope was that the effects of this would mimic some research that had been done on mice, indicating that blood plasma transfusions may help reverse the effects of aging if done in this manner. While this sounds sort of nice, like Bryan is doing this to help his elderly father live longer, it's somewhat overshadowed by the fact that Bryan's son was asked to sacrifice some of his vitality to help his father pursue this obsession. Apparently, Bryan is content with donating some of his plasma to his father, but without some even younger plasma to replace it, this deal is not worthwhile to him.
Sometimes I find myself wondering whether it's all just goofy conspiracy theories, the stuff people say about the elites being obsessed with young blood, but here Bryan is, proudly displaying his literal vampirism.