New York (PTI): Ladies, beware! Alcohol may be good for your heart in moderation, but drinking more than a glass of wine a day could up your risk of developing breast cancer, a new study has revealed.

And don't think that switching to beer or spirits is the answer -- the more alcohol consumed on a regular basis, the greater the risk of the disease, according to researchers at the University of Chicago.

"Our study shows that not only does a small amount of alcohol significantly increase the risk of breast cancer, it increases the risk of the most common type of breast cancer, responsible for around 70 per cent of cases," lead researcher Jasmine Jew said.