Some in the Holy See are beginning to openly discuss concerns about Francis' condition and asking if the Holy Father is overtaxing himself.
Less than two years into his papacy, the 77-year-old Pope has been on a remarkable whirlwind of activity that a man half his age might find difficult to keep up with.
But close observers are noting that the Pope's physical body may be failing to keep up with his youthful energy and vigor, especially considering he only has one fully functioning lung.
