Ozempic be damned. Silicon Valley is holding on tight to its love of the personal trainer.

These are people like Matt Dixon, a San Francisco–based trainer and former professional triathlete whose clients include billionaire Max Levchin. After several decades of whipping folks like Levchin into tip-top shape, Dixon has a thesis for why so many technorati, as he said, "take on massive physical challenges."

"It's not just ego or pride or satisfaction," Dixon said (though surely there's a little of that going on). He believes the "mindset traits" honed in athletic training translate to the workplace: skills like "tenacity, adaptability, prioritization, communication and collaboration," he said.