Israeli-American Nobel Prize Laureate Daniel Kahneman died by assisted suicide in Switzerland, according to the Wall Street Journal. Kahneman made the decision to end his life on his own terms while still in good health, motivated by his belief that the suffering associated with old age was unnecessary. He spent his last days in Paris with his family before traveling to Switzerland for the assisted suicide. Kahneman's decision was personal and not an endorsement of assisted suicides, and he did not want it to be a focus in obituaries.