Teenagers who drink alcohol on a regular basis have a very high chance of developing breast cancer. A study under the name of `Growing Up Today' was conducted on 6,899 women from the time they were 9 to 15 year old till they turned 18 to 27 years old. The study was conducted to find out the chances of developing breast cancer in teenage by excessive consumption of alcohol.

The study discovered that teenager girls who drank nearly every day were five times more probable to develop benign breast tumors as compared to those who consumed alcohol less than once a week. It was published in the online journal Pediatrics.

A biostatistician at Harvard Medical School in Boston, Catherine Berkey, who is the co-author of the study said , "Our study may suggest that teen drinking increases the risk for breast cancer, whether in all females or in those who go on to develop BBD, but longer-term follow-up is certainly required".

This study does not rely on the memory of participants for their teen drinking habits, but was the first ever study which has collected the data on alcohol consumption during adolescence.