Which factors are associated with breast cancer?

The correct answer highlights several key risk factors that have been identified in association with breast cancer. Early menarche, which refers to the onset of menstruation at a young age, is linked to increased lifetime exposure to estrogen, a hormone that can promote the development of some breast cancers. Similarly, rapid menstruation establishment can lead to longer exposure to hormonal fluctuations, which may contribute to an elevated risk.

Obesity is another significant factor; excess body fat can lead to higher estrogen levels, as fat tissue produces estrogen, thereby increasing the risk of breast cancer. High alcohol intake has also been established as a risk factor. Studies have shown that alcohol consumption can elevate the levels of certain hormones, increasing the likelihood of breast cancer development.

The combination of these factors paints a clear picture of how biological and lifestyle influences can contribute to breast cancer risk. Understanding these relationships is critical for preventive health strategies and for guiding individuals on modifiable risk factors.