
172
= ELEMENTS IN OUR BODIES
Our bodies are also made of elements—about 34 different elements, actu-
ally. That means that over one third of all the elements we’ve looked at so
far are actually a part of us. It’s easy to think that elements exist only in the
outside world, but...
WE’RE ALL ELEMENT TREASURE HOUSES.
And among them are lots of elements that you might have thought you’d
never have anything to do with, like strontium or molybdenum. It might sur-
prise you to know that arsenic is one of them, too. Arsenic, which i ...