"One of the Best-Kept Secrets of Recent U.S. History"

"Lee Harvey Oswald killed Kennedy before the President's medical ailments could. But the evidence suggests that Kennedy's physical condition contributed to his demise. On November 22, 1963, Kennedy was, as always, wearing a corsetlike back brace as he rode through Dallas. Oswald's first bullet struck him in the back of the neck. Were it not for the back brace, which held him erect, the second, fatal shot to the head might not have found its mark."

In a 2002 Atlantic article, Robert Dallek writes about John Kennedy's health problems.