A healthy respiratory system is one of the keys to better fitness since it directly impacts immunity. When the lungs work properly, an individual has an easier time warding off infections.

LONDON (AP) — Vatican authorities said Monday that Pope Francis has a complex infection in his respiratory ... don’t work in isolation and that a person’s immune system is also critical ...

Pope Francis has a complex infection in his respiratory system and ... He said antibiotics don’t work in isolation and that a person’s immune system is also critical to fighting off pneumonia ...

LONDON — Vatican authorities said Monday that Pope Francis has a complex infection in his respiratory ... don’t work in isolation and that a person’s immune system is also critical to ...

Earlier, the Vatican had said the 88-year-old had a “polymicrobial infection of the respiratory tract” and pneumonia in both lungs ... Fourth, the immune system weakens with age, which ...

Vatican authorities said Monday that Pope Francis has a complex infection in his respiratory ... antibiotics don’t work in isolation and that a person’s immune system is also critical to ...

Vatican authorities said Monday that Pope Francis has a complex infection in his respiratory ... antibiotics don’t work in isolation and that a person’s immune system is also critical to ...

Pope Francis has a complex infection in his respiratory system and ... He said antibiotics don't work in isolation and that a person's immune system is also critical to fighting off pneumonia ...