Fish Twice a Week

Omega-3 fats found in fatty fish like salmon help dampen inflammation, lower triglyceride levels, and slow the growth of artery-clogging fat. Now, a new study suggests a broader health benefit: It all revolves around telomeres, nifty little strands of tandem repeat DNA, whose lengths correlate with longevity. Cardiologists found that heart patients who survive the longest have high levels of omega-3 fats in their white blood cells. Speculation: Omega-3s may protect against cellular aging.

The Longevity Fix:  The American Heart Association recommends eating fish (particularly fatty varieties) twice a week. Check out Fish 101 for specifics.

See More: Best Salmon Recipes