JFK not assassinated - how long would he have lived?

I've watched enough documentaries about him to know he had some formidable physical ailments, namely Addison's Disease. He was very frail, and often needed help to remain standing up when giving his speeches. Also, assuming he was re-elected and that presidents age twice as fast while in office, he would have aged eight extra years.

I made a guess that he would have died in 1986, at the age of 69. Any thoughts?

I've usually imagined his death being in the late seventies, around the time of Hubert Humphrey's OTL, but estimates on this board have usually varied from as early as 1971 to as late as... your estimate right there.

Late 70s, early 80s is a good estimate.

1973 pops into my head for some reason.

I remember reading that with his health problems he could expect to live to about 60, so circa 1977

He had been sickly his entire life. He spent a lot of time as a child in the hospital and recuperating from various illnesses. I remember a PBS documentary last November saying doctors said he wasn't expected to live to see adulthood. He defied the odds on that. You also have to factor in his genetics as well. His father lived until he was 81, his mother until she was 104, his maternal grandfather lived to be 87, his paternal grandfather to 71.

Of his siblings who didn't die tragically at a young age: Rosemary lived to be 86, Eunice lived to be 88 (she is believed to also have had Addison's disease), Patricia lived to be 82, Ted lived to be 77, and his sister Jean is still living at the age of 86. So JFK had good genes.

Would he have quit smoking after he left office? What were his eating habits? If he were forced to reveal his Addison's disease during his second term, that would have brought more attention to the disease. Maybe the increased focus would have helped find new treatments for the disease that could have helped JFK. Plus there are new technologies and medications coming out all the time, that was also the case in the 1970s.

I think if he had lived he would have had to start using a wheelchair his last few years in office. The stress of the presidency (and considering the turmoil of the late 60s, he would have had more stress than most presidents) that would have taken its toll on him. Maybe his health would have improved after leaving office.

Considering his genes combined with his health I think he could have made it to the mid to late 1980s. MAYBE into the early 1990s. He would have been 75 in 1992. I mean the doctors were wrong about him dying before reaching adulthood.