Thanks for the feedback! Yeah, if I would have had the time I would have tried to make things a bit clearer. There's a book right next to the blood vial you can hover over(and click on) to read what the different ingredients do. However you need to research to unlock the content. Whenever you test the blood on a subject they die, and if needed there's the option to find more of them. Sleep does nothing except waste a day, only reason I added it was because I wanted one extra button ;)