Addictions researcher Warren K. Bickel and his colleagues asked people addicted to opioids and healthy controls to complete a story that started with the line: “After awakening, Bill began to think about his future. In general, he expected to . . .” Opioid-addicted study participants referred to a future that was on average nine days long. Healthy controls referred to a future that was on average 4.7 years long. This striking difference illustrates how “temporal horizons” shrink when we’re under the sway of an addictive drug.
