Turning a death sentence into a long-lasting health condition

On January 11, 1922, 14-year-old Leonard Thompson became the first person to receive an insulin injection as a treatment for diabetes. A disease that had haunted humankind for millennia finally became treatable, and the century since has seen a lot happen, both good and bad. A.S. Ganesh takes stock of a disease that is now unfolding as a global epidemic…