Pope Francis is slowly regaining his strength in hospital but must "relearn to speak" after prolonged use of high-flow oxygen therapy, Cardinal Victor Manuel Fernandez said today.

Hyperbaric oxygen therapy is a growing trend in wellness clinics, medical facilities and even individual homes. WSJ’s Daniela Hernandez explains how it works and explores whether the claims hold ...

In its latest health update, the Vatican said the pope's condition remained stable with "minor improvements in breathing and mobility".

like tents—are not offering the same type of therapy as those that are medical-grade and FDA-approved, as they do not deliver 100% oxygen. Instead, they use regular air that is pressurized at 1. ...

Some Missouri military veterans use a therapy in which they breath pure oxygen to help with certain combat-related injuries.

Industry leaders say the government failed to protect Thomas Cooper, 5, from dying in a hyperbaric chamber fire at the Oxford Center in Michigan.