Years after Kennedy's death, it was revealed that in September 1947, while Kennedy was 30 and in his first term in Congress, he was diagnosed by Sir Daniel Davis at The London Clinic with Addison's disease, a rare endocrine disorder. Davis estimated that Kennedy would not live for another year, while Kennedy himself hoped he could live for an additional ten. In 1966, Dr. Travell revealed that Kennedy also had hypothyroidism. The presence of two endocrine diseases raises the possibility that Kennedy had autoimmune polyendocrine syndrome type 2 (APS 2).