Ever seen Limitless? In it, Bradley Cooper’s character uses a mysterious substance to unlock his brain’s hidden potential, achieving extraordinary success. Though fictional, the story hints at a growing interest in cognitive enhancers known as nootropics. While they may seem trendy now, nootropics have actually been around for ages. Ancient herbs and natural remedies, often used by past generations for their energizing and focus-enhancing properties, fit comfortably within this category.