genetic testing

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Genetic testing is being used more frequently to help physicians prescribe medications that will prove most effective based on an individual patient's genetic makeup. 

Ann Thompson / WVXU

Angelina Jolie made the difficult choice of having her breasts, ovaries and fallopian tubes removed because genetic tests showed, without the elective surgery, she had an 87 percent chance of getting breast cancer and a 50 percent chance of developing ovarian cancer.

Jolie's mother died at 56 years old. She also lost her grandmother and aunt to cancer. In a New York Times op-ed the filmmaker and actress explained why she made that decision.