If there’s anything we humans can be proud of, it’s the major advancements in medicine and health that’s developed over the past century. You can find treatment for almost any affliction thanks to scientists and doctors who have studied the human body.

What were once life threatening conditions can now be cured thanks to modern medicine (and a lot of money).

And yet there are still so many unexplainable bodily functions that seem to have no real purpose. In fact we’ve overlooked these body parts and reactions, dismissing them as a part of life. But read on and see how strange they really are when you think about them.