668. Do Taylor Swift and Bad Bunny Have Blood on Their Hands?

As one researcher told us: “We’ve engineered a world where the most distracting device ever made is also the one we use to listen to music in the car." A new study tries to measure the cost. SOURCES: Bapu Jena , economist, physician, and professor at Harvard Medical School. Chris Worsham , pulmonary and critical-care physician at Mass General Hospital, health-policy and public-health researcher at…