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and our anatomy and physiology differs.
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So, it's a hard thing to,
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do to describe how even one particular kind of drug
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acts in a population of people is difficult.
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We have to start somewhere
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so we're going to start with a simplification.
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That simplification is that these complex things--people--
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can be represented by very simple constructs.
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The simple construct that I show here
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is that instead of a person
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we're going to consider the person to be
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a well stirred vat of liquid, water for example.