Nobel prize in medicine goes to U..S, German scientists for brain research – National
American Karl Deisseroth and Germans Peter Hegemann and Georg Nagel won the 2026 Nobel Prize in Physiology or Medicine on Monday for developing optogenetics, a technique that uses light to control individual nerve cells in the brain. The Nobel Assembly of Sweden’s Karolinska Institute said Deisseroth, 54, Hegemann, 71, and Nagel, 73, had been selected











