(HuffingtonPost) - Red wine has long been a controversial libation (and not because of cabernet versus malbec battles). Scientists have gone back and forth over the years about red wine's benefits; specifically whether or not resveratrol, a plant compound found in the drink, has anti-aging powers. But a recent study published in the journal Cell Metabolism found resveratrol does “prolong lifespan,” overturning a 2010 National Institute of Aging report. Researchers at the National Institute of Health and the Glenn Foundation for Medical Research found that resveratrol’s anti-aging properties are only expressed when a specific gene, SIRT1, is present, i09 reports.