Pope Francis' health has been a subject of speculation since even before he was elected, when a false rumor that he was missing a lung circulated during the conclave in an effort to thwart his candidacy. (The pope had lung tissue removed when he was young because of an infection.) Rumors of resignation flew again last summer, when he was hospitalized for a scheduled surgery on his colon, and again this year as he has been in visible pain when walking and has begun using a wheelchair.