One reporter is crediting actress Olivia Munn for saving her life. Inside Edition's Alison Hall shared an emotional post via Instagram on Wednesday, January 8, announcing that she has recently been diagnosed with breast cancer and is preparing to undergo a mastectomy.

The Breast Cancer Risk Assessment Tool (BCRAT), also known as The Gail Model, is a tool used by healthcare professionals to estimate a woman's risk of developing invasive breast cancer within the next five years and within her lifetime (up to age 90), according to the National Cancer Institute.

Most women rely on mammograms to find breast cancer early but there's also a risk assessment test. Stephanie Stahl reports.

Inside Edition's Alison Hall never expected that a story she worked on would change her life. Last year, actress Olivia Munn revealed she was diagnosed with breast cancer. To learn more about the Breast Cancer Risk Assessment Test,