Oprah Winfrey asked Letterman if his tough quintuple bypass surgery was “humbling” afterward. He admitted that he was a hypochondriac. “When you have heart surgery, you become less prone to hypochondria and recognize you genuinely have something.”
Doctors divert blood around any clogged portions of your heart’s arteries during a bypass treatment.
The arteries may constrict as plaques, which are fatty deposits, develop over time, limiting the heart’s normal flow of blood.