Research consistently shows married individuals enjoy better health than those who are single, divorced, or widowed. A landmark study from Carnegie Mellon University delivers the first biological proof, revealing how marriage bolsters health. Researchers discovered married people have lower cortisol—the key stress hormone—compared to never-married or formerly married individuals. This backs the idea that unmarried people endure more psychological stress. Prolonged stress raises cortisol, disrupting inflammation control and fueling many diseases' development and progression.
