When you feel really sick what do you do? You go to a doctor. He gives you a check-up. He looks at your eyes, your ears, and your blood pressure. A good doctor will try as much as he can to pin down what is making you sick. It is called diagnosis. He tallies all his findings. He may even go back to his books and even consult with other experts until he finds out what is exactly wrong with you. He then prescribes the right medicine or treatment for you that can help you feel better. And if he doesn’t have the right treatment, he usually refers you to someone who can help you, and that usually is someone better at a particular field.

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