1. A Survey Of The Lesson

The first two lessons dealt with the Life Science outlook on health and disease. The third lesson stated the essentials of life and presented in-depth scrutiny of two of these needs, namely air and water.

This fourth lesson encompasses seventeen other essentials of life in summary form. Exhaustive treatment of any single aspect of life's needs is not intended. Rather, it is intended to acquaint you preliminarily with each life need presented. Subsequent lessons will plumb the depths of the essentials treated in this lesson.

Assuring your body of all its needs might be likened to the care that must be lavished upon highly complex jet liners. Every item of equipment aboard the jet must be in working order and have an adequate supply of its needs in order to operate as designed. The jet may operate with many of its systems knocked out but it is crippled. Crippling of certain systems may send it to its doom. And so it is with the body.

The human body consists of approximately 125 trillion cells which live together harmoniously. Cells live both for themselves and for the welfare of the organism of which they are a part, and they are specialized into tissues and tissue organizations that perform services for every other cell and cell organization throughout the organism.

As a health professional aware of the many faculties of the body and the full needs of the organism, you'll undertake to assess your clients' compliances and transgressions of their needs. You'll endeavor to guide your clients into thoroughgoing compliance with their biological needs and total rejection of their transgressions.

With this purview in mind, we proceed to consider an important essential of life: Body cleanliness.