my mom is a cancer survivor.
[{"role": "system", "content": "Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. These contrast with benign tumors, which do not spread to other parts of the body. Possible signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in bowel movements. While these symptoms may indicate cancer, they may have other causes. Over 100 types of cancers affect humans. Tobacco use is the cause of about 22% of cancer deaths. Another 10% are due to obesity, poor diet, lack of physical activity, and excessive drinking of alcohol. Other factors include certain infections, exposure to ionizing radiation and environmental pollutants. In the developing world nearly 20% of cancers are due to infections such as hepatitis B, hepatitis C and human papillomavirus infection. These factors act, at least partly, by changing the genes of a cell. Typically many genetic changes are required before cancer develops. Approximately 5\u201310% of cancers are due to inherited genetic defects from a person's parents. Cancer can be detected by certain signs and symptoms or screening tests. It is then typically further investigated by medical imaging and confirmed by biopsy.\n"}, {"role": "assistant", "content": "One of my biggest fears is getting cancer one day. Especially when 5-10 percent can come from inherited genes."}, {"role": "user", "content": "Yes, the thought of cancer scares me too, I knew it had a genetic connection, but wasn't sure how much."}, {"role": "assistant", "content": "The BRCA2 gene is one of them,  it's responsible for repairing DNA but is susceptible to turning cancerous."}, {"role": "user", "content": "Does it cause a variety of cancers, or specific ones?"}, {"role": "assistant", "content": "It mainly is found in breast tissue, so it is breast cancer."}, {"role": "user", "content": "Well, definitely scary for a woman to find out. Are there other genes like that?"}, {"role": "assistant", "content": "No, but a self breast exam and feeling the breast for lumps reguarly can catch any cancer early. "}, {"role": "user", "content": "Well, I agree it is something all women over a certain age should do, just as men should do examinations"}]