This is just some random things I research when im bored/need to know for a fanfic! It might have something that interests you!
You can request anything you want to know! Either from a disease or such, to an specific serial killer from the 18th century, as long as I'm comfortable while doing the research.
Now I'm no expert in any of the things in this book (unless you request for, let's say, maladaptive daydreaming). All the information is taken from the internet, so if you find misinformation please tell me!