A Beam of Light as the Brain's Switch: The 2026 Nobel Prize in Medicine
The 2026 Nobel Prize in Physiology or Medicine went to three names: Karl Deisseroth, Peter Hegemann, and Georg Nagel. The official citation reads: “for the discovery of light-gated ion channels and optogenetics."[1] The award, which sounds a little abstract at first, tells a rather romantic story: humanity spent decades, and finally learned to use a beam of light to switch on or off a specific group of nerve cells in the brain, with precision. ...