Elvis Presley's Doctor Nick: chronic constipation killed him

"It has been widely reported that Elvis Presley died in 1977 from cardiac arrhythmia, an irregular heartbeat, possibly brought on by drug dependency, obesity and a weak heart. But the music legend's longtime friend and physician, Dr. George "Nick" Nichopoulos, has put pen to paper for the first time and revealed his belief that it was chronic constipation that actually killed the King of Rock and Roll." - Fox