Several studies show heart-healthy benefits of light drinking. One study shows that the possible reason could be the relaxation of the blood vessels that takes place after one cocktail (4 oz of wine, or 1.5 oz of liquor). However, having a second drink actually STRESSES your circulatory system and detracts your liver from cleaning out toxins while it works to neutralize the alcohol.
It is probably no surprise that women get drunker quicker, and their livers may be two to three times more at risk than a man’s, even when drinking the same amount of alcohol.
You are better off having a glass of wine each day than to hold out until the weekend for several glasses.
Information from a November 2009 article in Glamour Magazine.