This is indeed impressive. It gives me some idea for a memory project I have on my “to do but don’t really know if and when” list: hormones.
Like ghrelin, testosterone, cortisol… there are a lot of names that I already know (and vaguely know what they do), but it would be neat to have a systematized system to slowly add new knowledge on the subject (because if I only read about it, without a system to anchor the new things I learn, it won’t stick).