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Since 2002, regular marijuana use among Americans age 45 to 54 has jumped by nearly 50 percent. Among those ages 55 to 64, it’s jumped by a whopping 455 percent. Pictured: A customer checks the aroma of a sample at Canna Care, a medical marijuana dispensary in Sacramento, Calif., on Aug. 19, 2015. (Rich Pedroncelli, The Associated Press)