To be fair, some people can also make themselves acutely miserable from fear of not being asked to the prom. It's hard to overestimate people's ability to make ourselves acutely miserable; it's not entirely clear to me that the causes we attribute that misery to are at all causal to it.
From the final chapter of his new book Cowards, titled "Adapt or Die: The Coming Intelligence Explosion."
The citations for the chapter include: