Once a universal feature of human psychology, the “unhappiness hump” in midlife has disappeared, replaced by a new trend: mental health is worst in youth and improves with age. Data from the U.S., U.K ...

Fossilized bones in Brazil reveal that deadly infections plagued sauropods 80 million years ago. Researchers uncovered unhealed lesions consistent with osteomyelitis, pointing to pathogens spread ...