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Less red meat

Going vegetarian a few times a week may lengthen your life. People who eat red meat every day have a higher risk of dying over a 10-year period than those who eat it less, according to a 2009 study from the University of North Carolina. (Most deaths in the study were from heart disease and cancer.) Burgers, steak, and pork were partially to blame, but processed meats—like bacon, ham, and hot dogs—also seemed responsible for shorter lifespans.

Next: More white meat