ABSTRACT
It is obvious that humans are not the only life-form or organism residing on this planet. In fact, we are only one of several million different species of organisms. Organisms include everything from mammals, birds, reptiles, and insects, to plants, bacteria, fungi, and yeast. But bear in mind that even though organisms such as a tomato plant and an octopus may seem completely different, they have numerous similarities which strongly suggest a common ancestry for all life-forms co-habilitating Earth, which includes humans. On the other hand, we humans have numerous features that are shared with only a few other species, namely apes, and further still we enjoy other features that no other species enjoys. In this chapter we will answer basic questions about the human body and how it works. This is critical because before you can know how to nourish the body, you need to know what it is and how it functions.
