At times, local and global events seem to suggest humanity is going backward. However, it's important to remember that progress often takes a winding path, and we can't underestimate how far we've come.
For example, open the wonderful book by Jack Hartnell called Medieval Bodies: Life, Death and Art in the Middle Ages, and you will quickly realize that our understanding of the human body and medicine has already evolved lightyears from where it was a few hundred years ago. Did you know that people would get their blood drawn even as insurance against future illness? Anything from forthcoming menstruation to the onset of a particularly hot summer!
To reinforce this point, let's check out an online thread where folks have been sharing the wildest medical facts they know. You never know when they might come in handy!