Written specifically for a general audience, this guide describes over 240 tests the reader can perform safely at home in order to identify and monitor a variety of medical conditions. The text encourages readers to become knowledgeable about their own health, by explaining when to handle common problems at home and when to call for a doctor. Illustrations accompany each test, along with an explanation of the test's significance, a description of how the test is performed, an assessment of the test's reliability and an interpretation of normal and abnormal results.