Cissy Houston Reveals All About Whitney Houston in New Book
After two stints in rehab, Whitney began using drugs again during her final tour - "the pressure was too much for her" her mother said. She unsuccessfully went to an out-patient program in May of 2011. Cissy doesn't blame the music industry or those around her, however, and says that she "was a grown woman, and she had always ben taught to think for herself."
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