A study by the International Journal of Public Health has found that moderate wine intake can be beneficial for longevity and biological aging, or the age of our cells and organs. The study divided 22,495 adults into five groups based on drinking habits, abstaining, former drinkers, moderate according to national guidelines, moderate for the Mediterranean Diet, and heavy drinkers. Men who consumed wine at levels consistent with the Mediterranean diet showed slower biological aging compared to abstainers. The strongest effect of biological aging being reduced was after roughly one to two glasses, by approximately 0.34 years. However, excessive wine consumption or any alcohol consumption can negate these effects. The researchers believe the effects of wine on aging are from bioactive compounds, such as polyphenols, which reduce inflammation.