During the Democratic convention in 1960, opponent Lyndon Johnson raised questions about Kennedy's Addison's disease, which doctors were only just learning to control.

NPR: To Tell or Not? Disclosing Candidate Health Issues

Back in 1955 in Canada, it was the only treatment available for Addison's disease.

BBC: Living with Addison's disease

She now teaches creative writing and has written a book - Second Chances: true stories of living with Addison's disease.

BBC: Living with Addison's disease