In an era dominated by certainty and hot takes, health expert and Primal Blueprint founder Mark Sisson is urging a return to humility.

In a post on X, Sisson wrote, “The best health experts are the ones who aren’t sure. The worst are absolutely certain about every opinion they have.”

The comment reflects a broader tension in the health and wellness space — between those who acknowledge the evolving nature of science, and those who double down on dogma. For Sisson, resilience in health isn’t about clinging to rigid beliefs, but staying open to new evidence, personal experimentation, and nuanced thinking.

As more people seek out simple answers to complex health problems, Sisson’s reminder is timely: intellectual flexibility is a form of strength, not weakness. And in the long run, it’s a cornerstone of resilient thinking.