The likely secret behind American Idol David Cook’ medical emergency

American Idol contestant David Cook was hospitalized after Tuesday night’s live show after experiencing heart palpitations.

Cook was treated for high blood pressure and released back to the Idol apartments where he was said to be doing better.

TMZ reports that Cook, who has high blood pressure to begin with, has been under tremendous stress because his brother has been diagnosed with cancer. Reportedly David’s brother, suffered a setback within the last week, and it has really put David under great stress as he deals with his emotions under the American Idol spotlight.

David has apparently been dealing with this situation during the entire season, and during one of the first shows, he broke down and said he couldn’t perform that night — and changed his mind at the last minute.

In spite of all he is dealing with Cook who is one of the top contenders, once again wowed the judges and audience with a stylish version of Dolly Parton’s “Little Sparrow.” Sporting a new haircut, he appeared happy and healthy during his performance.