Heartbreak is inevitable. Romances end, loved ones die, friends let us down. These experiences might be universal, but their impact can still be devastating. That’s what science journalist Florence Williams discovered after her husband of 25 years unexpectedly asked for a divorce. William found herself in a daze, shocked and miserable, and even ill. “Physically, I felt like my body had been plugged into a faulty electrical socket,” she wrote. “In addition to weight loss, I’d stopped sleeping. I was getting sick: My pancreas wasn’t working right. It was hard to think straight.” To help understand what was happening to her, she turned away from self-help book advice—such as “learn to love yourself first” or “beware of rebound relationships”—and instead looked to science. The result is her book, “Heartbreak”—part memoir, part exploration into the science and practice of healing from heartbreak—which offers hope and guidance to anyone who’s experienced heartbreak …