To keep the body in good health is a duty [. . .]; otherwise we shall not be able to keep our mind strong and clear.
—BUDDHA, EASTERN sage on whose teachings Buddhism was founded
Early on in my career, I had a colleague, whom I’ll call Sara, who was a rock star among rock stars when it came to her job. Her ethics were flawless, her management was impeccable, and walking into one of her team meetings was something akin to walking into Hogwarts—magical and exciting. Sara worked days, nights, and weekends to be the best team member she could be, sacrificing things like sleep and exercise, in pursuit of the best results possible.
The problem? Over time, Sara began to have serious health issues—her immunity ...