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Identify the tests you need, and understand the results Knowing which health checks and tests to get when can prevent illness, head off problems, and even save your life. This easy-to-use guide explains all the common health tests so that you can understand and manage your well-being.When you've had a test, how often do you understand what the results really mean for your health and your lifestyle? You've probably heard of good cholesterol and bad cholesterol, but what does that mean? And what can you do if you're told your bad cholesterol is high? Why are there two numbers to show your blood pressure? Is weight gain hereditary? Be proactive in managing your health by learning more about how your health is measured. Discover what factors influence medical tests, and what lifestyle changes you can make to keep fit and healthy for longer.