EY global chief innovation officer, Joe Depa; Cisco SVP & CMO, AI, Networking & Collaboration, Aruna Ravichandran; and billionaire Mark Cuban (left to right).EY/Cisco/John Nacion/Variety via Getty ...

Dec. 31, 2025 As we age, our immune system quietly loses its edge, and scientists have uncovered a surprising reason why. A protein called platelet factor 4 naturally declines over time, allowing ...