American Deisseroth and Germans Hegemann and Nagel win 2026 Nobel medicine prize
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Karl Deisseroth, Peter Hegemann, and Georg Nagel have won the 2026 Nobel Prize in Physiology or Medicine for discoveries concerning light-gated ion channels and optogenetics. Announced on Monday by the Nobel Assembly at Sweden's Karolinska Institute, the laureates share a prize sum of 12 million Swedish crowns, equivalent to about $1.2 million. Optogenetics enables scientists to control individual nerve cell activity in living brains using light, transforming neuroscience research globally. Deisseroth is a 54-year-old American researcher at Stanford University, while Hegemann and Nagel are German biophysicists aged 71 and 73, respectively. The medicine prize traditionally opens the annual Nobel announcement cycle, with awards in physics, chemistry, literature, peace, and economics to follow. The honors culminate on December 10 in Stockholm, marking the anniversary of Alfred Nobel's death. The methodology pioneered by the laureates continues to drive fundamental advances in understanding complex neural circuits and neurological disorders.