This means we have more control over our health than we might have thought. By monitoring and tweaking our inputs, we can influence and even determine our well-being. Taken all at once, our health may seem inscrutable; laid out in a sequence, it becomes a series of decisions, each with risks, benefits, and trade-offs. In other words, we can organize our health options into a decision tree, a method for factoring in our inputs, mapping out our options, and guiding us along the best possible path.
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