We've all seen or heard of the studies showing that moderate drinking has some health benefit. (Some of us have even celebrated them.) But everyone's definition of "moderate" is different. What's moderate to Lindsay Lohan might be a three-day bender to you and me.

So how much alcohol is actually helpful and how much does it take to turn harmful? A lot less than you think is the answer for both.

CBS News and WebMD reported on a "state-of-the-art review of drinking and health by University of Missouri cardiologist James H. O'Keefe, M.D., and colleagues" which showed that more than one drink a day for women and more than two a day for guys ends up causing more harm than good.

What do they consider "one drink"? They define it as "a 12-ounce bottle of beer, a 5-ounce glass of wine, or 1.5 ounces of 80-proof distilled liquor which all have between 13 and 15 grams of alcohol." And they found that just a little more than that a day will start to do some damage.

No word on whether you can "bank" your daily drinks. Have five Saturday night then not drink again until Thursday. But I'm guessing that would be a no. You can read the full article here.