I need help writing a thesis statement for my paper below is my first paragraph but I am just not sure on how to write a thesis statement? Please help!!

The Human Body is very interesting to me. It does so many things that you would not think of every day. I am an EMT and I became an EMT because the body interest me so much. I hope to further my education past this class to become an RN one day. As you sit here and read this paper your body has made new cells and your nails have grown a centimeter. You do not even realize that your is doing all this, it just does. In order for us to stay alive we breath its not a choice of ours; our body just does it.

Well, a thesis statement is supposed to summarize the purpose of your paper; it states whatever the main idea that you're trying to express is. So going by your first paragraph, for instance, you might want to have a thesis statement something like:

The human body is a fascinating creation that does many things every day that we are completely unaware of.