The Top 10 Worst Hereditary Conditions

(thanks Mark) "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."

clipped from images.livescience.com clipped from images.livescience.com Baldness Baldness is likely due to abnormalities in several genes from one or both parents. Lactose Intolerance If you can't tolerate milk, your relatives probably left cow udders alone. Acne Studies have shown that many school-age boys with acne have a family history of the skin condition. Having Twins Although identical twins are random events, fraternal twins pop up in families again and again. Heart Disease Children of parents with heart and blood vessel diseases are more likely to develop them too. Obesity Genes have been shown to be the cause of obesity disorders such as Bardet-Biedl syndrome and Prader-Willi syndrome. Bullying A gene that increases an individual's risk for violence has been discovered. Color Blindness Ten million men in the U.S. cannot distinguish red from green. Breast Cancer Women who inherit the mutation tend to get cancer early in life and in both breasts. Alcoholism recent research reports about 50 percent of the risk for alcoholism is genetically determined