As Pope Francis remains critically ill, students and faculty at the University of Dallas are praying for his healing.

Fox News national correspondent Jeff Paul has the latest on the Catholic leader's health on 'The Story.'

The Vatican says Pope Francis remains in critical condition but has showed slight improvement in laboratory tests.

The combination of health issues has kept the Pope from performing his public duties, including weekly prayers on Sundays, but his doctors have recently said he is alert, joking, and continuing to work, as well as reading messages from well-wishers around the world.

Time-honored rituals, drafted and refined over centuries, allow for ritual mourning and provide order at a dramatic moment of transition.

Concerns over Pope Francis' health have mounted in recent years as have questions about his succession. Here's what we know.