Charles Osborne hiccuped continuously for 69 years
Charles Osborne hiccuped an estimated 430 million times between 1922 and 1990. His hiccups started in 1922 when he was weighing a hog for slaughter and suddenly stopped in 1990. Charles Osborne died 1 year later of complications of ulcers.
Despite his hiccups he managed to live a normal live. He got married and had eight children.
Source: Wikipedia