This is work is less about taking your brain to a mental gym and more about cultivating the strange and wondrous garden that is your mind. | Getty Images A lot of people are looking for ways to improve, preserve, and prolong their brain’s health. Just look at the seemingly endless amount of self-help books , podcasts , phone apps , TikToks , and Instagram Reels dedicated to the subject. And, frankly, it makes sense. Alzheimer’s disease and dementia — conditions that fundamentally involve the loss of one’s sense of identity and sense of time and place — are distinctly terrifying compared to physical ailments. They rob a person and their loved ones of what should be a special period of their lives. After all, Americans are living longer than ever . It’s only natural that we want to be as present as we can be to enjoy it. But despite the many promises you may hear about how to “exercise” or “train” your brain to improve your cognition long-term, there’s still a lot we don’t know.…