On October 5, 2026, the Nobel Assembly at Karolinska Institutet announced that the Nobel Prize in Physiology or Medicine for 2026 had been awarded jointly to Karl Deisseroth (American, age 54, Stanford University and Howard Hughes Medical Institute), Peter Hegemann (German, age 71), and Georg Nagel (German, age 73) "for their discoveries concerning light-gated ion channels and optogenetics."