American waistlines continue to expand.
About 33-percent of adult men and 35-percent of women were obese in 2005 and 2006.
The survey by the Centers for Disease Control and Prevention found the rates were slightly higher than the 31 and 33-percent reported in 2003 and 2004.
The adult obesity rate has been climbing since 1980 when it was 15-percent.
The CDC says obesity is most common in adults aged 40-to-59.
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