The human body is a crazy thing. After evolving for about 6 million years, our bodies that include 206 bones, a couple gallons of blood, around 600 muscles and much more, are capable of incredible things. We might not all be climbing Mount Everest or competing in the Olympic Games, but every single one of us has a body that is working incredibly hard to keep us alive. And while we spend our entire lives in these fascinating skin suits, many of us don’t actually have a great understanding of how they work.
