In his boyhood and throughout his young life, Jack Kennedy suffered from an incredible number of health
problems including; scarlet fever, diphtheria, appendicitis, malaria, jaundice, hepatitis, adrenal
insufficiency, irritable stomach, a hearing problem (left ear), pet allergy (dogs), and chronic back pain.
Despite all this, to the public he later defined the look of vibrant American youth, a huge accomplishment,
due largely to Jack's sheer will power in overcoming his health problems.