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A leadership session at Sequoia opened with a check-in question: what is the vignette in life that made you who you are? One partner answered, and he cried as he did.

He had gotten on a bus at eleven or twelve, and a girl he thought was cute looked at him and told him he was fat. Thirty or forty years later, he still wakes up at four in the morning to work out.

A lot of the partners cried as the stories came out. Some of them were in a way ridiculous, and a remark like that one sounds minor to an outsider. To him it changed his life, and it has carried him through every year since.

Why do childhood remarks stick for decades?

Emotionally charged events get stronger memory storage because the amygdala signals the hippocampus to prioritize them. James McGaugh of the University of California, Irvine spent decades showing that stress hormones released during an emotional moment boost how firmly it is stored. Adolescents are especially sensitive to peer judgment, so a remark made at eleven or twelve can carry more weight than the same words would later.

Why do shared stories build trust inside teams?

Amy Edmondson of Harvard introduced the term psychological safety in 1999 for a team climate where people feel able to speak up without fear of embarrassment. Google's Project Aristotle, an internal study published in 2015, found it was the strongest factor separating its highest-performing teams. Personal disclosure from one member tends to be returned by others, and that reciprocity is a standard way groups build closeness.

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