The chairman is the United States’ highest-ranking military officer. A four-star general or admiral who reports directly to the president, the chairman presides over the Joint Chiefs of Staff, a ...

Pope Francis experienced more respiratory problems and went on noninvasive ventilation on Monday, the Vatican said, as the head of the Roman Catholic Church battles double pneumonia in the hospital.

Explore the profound impact of physical work on health and the body at our new major exhibition. We publish thought-provoking books exploring health and human experiences. Our latest titles include ...