Bottles of Cabernet and Shiraz
Bottles of Cabernet and Shiraz - 
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SCOTT JAGOW: A bishop from Spain once said he lived so long because every day he drank a bottle of wine. Except the days he didn't feel well. Then he drank two bottles. OK, that's not exactly moderation, but maybe he was on to something. A new study finds perhaps another health benefit of drinking red wine. Here's Janet Babin:

JANET BABIN: The study is from the Mount Sinai Medical Center. It found that moderate consumption of Cabernet Sauvignon may help reduce the incidence of Alzheimer's disease.

At least, that's what happened to mice in the study that were slipped some of the wine in their drinking water.

Red wine sales began rising back in 1991, after studies suggested that it could help stave off heart disease.

Beverage analyst Tom Pirko says this latest study gives consumers another reason to drink red wine:

TOM PIRKO:"There are many, many people who simply now find that wine is good for them and so they will drink more of it. This information could be tremendously beneficial to the people who sell this varietal."

According to the Wine Institute, U.S. wine sales grew five percent in 2005, to $26 billion.

I'm Janet Babin for Marketplace.