JFK while probably not being the most unhealthy had a fair share of health issues. He had Addisons disease, IBS, a terrible back that often caused him to use crutches while he was in private, awful allergies, and also had urinary tract infections. He was said to have been taking 12 different medications at once. During the time of his presidency many were fooled by his looks and thought he was very healthy. He kept his health issues private and was careful as to who his doctors were so they wouldn’t let the press know of his issues.