Whose thoughts have not sometimes drifted off towards their own concerns-to the need for sleep, food, or distraction or to some family, career, or future plans?

• 我们的想法有时难道不是与他们（患者）的切身利益--有关睡眠、饮食、消遣或者有关家属、职业、未来--渐行渐远的吗？