A new advisory out by the US Surgeon General details how drinking alcohol can increase the risk of developing seven types of cancer.

It also comes with a call for Congress to require warning labels on alcohol, informing people about the link between cancer risk and alcohol consumption.

And in colleges with the Norton Cancer Institute weighs in on alcohol consumption and the risk of developing breast cancer.

One of the seven cancers on the surgeon general's list.

Details in tonight's look at medical news.

The information we have regarding alcohol and breast cancer has been very clear for many years.

These were epidemiology studies where they had large groups of women with diagnosis of breast cancer.

They would match them up with what would be, quote, community controls, which would have equal age, potentially equal other risks of cancer, looking for other other things that could be going on.

That's different between those two groups.

That might be a predictors of breast cancer.

And alcohol comes up.

Clearly any alcohol versus none.

The alcohol has a higher risk of breast cancer, but even when you look at small amounts, there's an increased risk of breast cancer and it increases.

So a little bit of alcohol on a daily basis is an increase, but it's even higher if there's an excessive amount of drinking two drinks a day, something like that.

But again, information we've known for a long time.

I think it's particularly concerning a patients that are at higher risk with other types of risk for breast cancer, obesity, for instance, weight patients that may have a family history, for instance, would be another group.

But I think it's important for women to know and it's important that I think with many other things in life, alcohol safe in most patients, and it's just moderating consumption, small amounts, things like that would be my recommendation in terms of reducing risk of breast cancer.

I do see some patients that have pre breast cancer that come to me to look for reducing risk and that absolutely is on the top of my list is to keep alcohol to a minimum level.

I typically write it out as one or fewer alcohol drinks per day, emphasizing the fewer, if at all possible.

And in all, my breast cancer survivors, we've actually have guidelines.

And it does appear that even in a breast cancer survivor, perhaps some risk, but probably safe for a moderate single drink, drink per day or less.

I don't think we can speculate that taking one month off and then going back to a moderate to a significant amount of alcohol per day, probably in the big picture over the next five or six years in a patients, not a person is not as important.

But I think perhaps knowing and finding out that, gee, my month that I really was not consuming alcohol at all, where normally I was having a drink or two every day, you know what?

I kind of feel better.

I sleep better.

We all know it.

It's counterintuitive.

Many people think that way.

To get a good night's sleep is to drink alcohol.

It's the other way around.

But they find out they're sleeping better, they're feeling better.

They're functioning much better and quicker at work.

I think overall, that alone would be helpful if a patient would like to try that.

The other cancers linked to alcohol consumption, colorectal, esophagus, mouth, liver, throat and voice box.