Two years ago, life was good for Sheryl Sandberg. The Facebook senior executive and mother of two had a best-selling book (Lean In: Women, Work and the Will to Lead) and she and her husband, Dave Goldberg, decided to take a vacation. But on that vacation, Goldberg collapsed at the gym from heart failure and died. He was 47 years old.

Sandberg went through a period of darkness after her husband's death. She turned to professionals and friends for help getting through it, and now she's written a book with one of those professionals, psychologist Adam Grant. It's called Option B: Facing Adversity, Building Resilience and Finding Joy.

And it's not just death which does this, it's really all forms of adversity. You want to silence a room? Get diagnosed with cancer. You know, have someone in your family go to prison. Lose a job. Sexual assault. These things are uncomfortable, and because they're uncomfortable people are often afraid of saying the wrong thing and often say nothing at all, and then we have this huge elephant in a room following us around. And one of the reasons I wrote the book and am launching OptionB.org is that the problem with that is that we then don't help each other when we most need that help, and I think that's when we can most come together.

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