The medieval Jewish philosopher Maimonides — yes, the same man who codified religious law — also wrote what was essentially a 12th-century wellness manual, and his most striking claim was this: most illness begins not in the body but in what he called 'the passions of the soul' — unregulated emotional states that quietly degrade physical function over time. Modern psychoneuroimmunology has since arrived at something similar, but Maimonides got there through a different route: he noticed that leaders who couldn't moderate their inner turbulence consistently made worse decisions *and* got sicker. The connection wasn't metaphorical to him — it was physiological. William Osler, the founder of modern clinical medicine, echoed this eight centuries later when he observed that the care a person takes of their own body is often a direct index of how seriously they take their obligations to others. What both men were pointing at is something the goal-setting literature misses: sustaining physical vitality isn't primarily about motivation or routine. It's a form of stewardship — treating your body as something you hold in trust, not just for yourself, but for the work and people that depend on your functioning well.

In the last 48 hours, what decisions did you make when you were physically depleted that you wouldn't have made otherwise?

Drawing from Jewish Philosophy synthesized with Philosophy of Medicine — Moses Maimonides (Mishneh Torah / Regimen of Health, c. 1180) synthesized with William Osler (Aequanimitas, 1904)