What is a major risk factor for developing breast cancer?

• A. High-fat diet
• B. Family history of breast cancer
• C. Alcohol consumption
• D. Physical inactivity

Answer: (B)

A family history of breast cancer is a significant risk factor because genetics play a crucial role in the development of this disease. Individuals with close relatives, such as a mother, sister, or daughter who have been diagnosed with breast cancer, tend to have a higher likelihood of developing it themselves. This increased risk is often linked to inherited gene mutations, such as BRCA1 and BRCA2, which can substantially elevate a person’s risk.

Having a family history highlights the importance of genetic predisposition rather than environmental factors or lifestyle choices. While elements like diet, alcohol consumption, or physical inactivity can influence overall health and may contribute to various cancers, they do not carry the same weight as genetic factors in the context of breast cancer risk. Therefore, the family history stands out as a critical factor in assessing an individual's risk profile for breast cancer.