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The Top 10 Worst Hereditary Conditions

Sometimes parents deserve a guilt trip. While you and the guy next door share 99.9 percent of the same DNA, that small fraction leftover amounts to three million inherited differences ranging from blood type to eye color, which make you unique. Unfortunately, that family inheritance doesn't always come in a pretty package. You can thank your parents for zits, hair loss, and deadly diseases. � Corey Binns