Medieval memory retention techniques?

In medieval times, an intriguing technique for memory retention involved using stress-induced adrenaline spikes. Communities believed that throwing children into a river after witnessing significant events would create lifelong memories of those occurrences. This method leverages the body's natural response to stress, which can enhance memory formation by spiking adrenaline. Such a practice demonstrates an early understanding, albeit unscientific, of how strong emotional experiences can solidify memories 1.

Andrew Huberman explains that this technique aligns with modern findings on the relationship between adrenaline and memory. The practice of inducing a robust emotional response to reinforce memory has been a longstanding approach 1.