It is well-known that the risks of breast cancer increase dramatically for women over the age of 50, but what takes place at the cellular level to cause this increase has been a mystery.

Breast-cancer researchers at the University of Wisconsin-Madison have found that two related receptors in a robust signaling pathway must work together as a team to maintain normal activity in mammary stem cells.

A new study finds that fetal exposure to the plastic additive bisphenol A, or BPA, alters mammary gland development in primates.

Studies by researchers at Dominican University of California show that breast cancer cells become increasingly aggressive the longer they are exposed to small concentrations of cadmium, a heavy metal commonly found in cosmetics, food, water and air particles.

SAN DIEGO, April 23, 2012 /PRNewswire-USNewswire/ -- A research team this week will present findings that they say may finally explain the link between alcohol consumption and breast cancer.