New study reveals real risk of breast cancer if you have BRCA gene mutation

In 2013, actress Angelina Jolie wrote an op-ed where she revealed she’d undergone a double mastectomy. Although Jolie didn’t have breast cancer, a genetic test had revealed she carried a genetic mutation that her doctors said put her at an 87% risk of developing breast cancer in her lifetime. Jolie also had a family history of breast cancer, losing her mother, grandmother and aunt to the disease.