High fit

Brightness controls whether you focus on the dark or hopeful side of a situation. Krishna Kalyanen had every reason to see his back-to-back diagnoses of type 1 diabetes and epilepsy as pure loss — the end of normal eating, the start of a difficult, expensive, isolating routine. Instead, he turned the dial toward curiosity. Rather than focusing on everything he couldn't eat, he started seeing his restricted diet as a map into unexplored territory in food science.