Former Vice President Dick Cheney's heart issues are well known, but his new book,
"Heart: An American Medical Odyssey," details just how many times his life was saved by the latest medical procedures just in the nick of time.
Cheney got new heart in 2012 at age 71, and told Dr. Sanjay Gupta in an interview for
CBS's "60 Minutes" and CNN that he can do anything he wants, including hunting and fishing. He doesn't run, he added, but that's because his knees are bad – not because of his heart.
But things weren't always so sunny.
Cheney's cardiologist, Dr. Jonathan Reiner,
co-authored the book, and told Gupta he had a particular fear for Cheney's health on the day of the Sept. 11, 2001 terrorist attacks. Reiner had received test results that day that showed Cheney's potassium levels so high he could die of a condition called hyperkalemia.
"I laid awake that night, you know, watching the replays of the towers come down and now thinking that, 'Oh great, the vice president's going to die tonight from hyperkalemia," Reiner told Gupta.
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