Opción B: Afrontar la Adversidad, Desarrollar la Resiliencia y Alcanzar la Felicidad

After the sudden death of her husband, Sheryl Sandberg felt certain that she and her children would never feel pure joy again. "I was in 'the void," she writes, "a vast emptiness that fills your heart and lungs and restricts your ability to think or even breathe." Her friend Ada…