In all of my research on breast cancer -- and all of my attempts to discover what I may have done to invite this disease into my body -- I have learned that there are some behavioral risk factors related to cancer. Some risk factors are loosely linked and perhaps need further study. And some are definites. Like smoking. And consistent use of alcohol. Now a new study done on rats now shows that nicotine can reduce blood alcohol concentrations and can lead to heavier drinking. Smoking and drinking -- at the same time -- may be even more dangerous than originally thought.

Only two previous studies have examined the interactions between nicotine and alcohol. So there is very little research about how nicotine assists in the metabolizing of alcohol. Until now -- said Wei-Jung Chen, associate professor of neuroscience and experimental therapies at the Texas A&M Health Science Center in College Station, Texas. Chen said it was clear in her study that the presence of nicotine significantly reduced peak blood alcohol content. This was observed only when alcohol entered through the stomach -- and not when injected into the abdomen. For humans, this means that people smoking while drinking will have to drink even more to reach the effect they desire. This will ultimately lead to increased amounts of toxic byproducts in the body. And it may prevent absorption of beneficial drugs in some people who both smoke and drink. And I can't imagine that the list of negatives will stop here. But is there really any more information necessary to support the danger of this combination of risky behaviors -- behaviors that on their own are dangerous enough to cause worry and concern.