what the doormouse said (thank you Grace Slick) is the thing we humans do, but what we should be more careful with - all this focus on the diet, too much sugar too many chemicals - none of that matters so much as what we put in our heads. See this article in the Guardian agrees with me! (and the Buddha, of course) yeah, I know it, knew it instinctively, can see the similarity between thinking and donuts, but since the Buddha said it, trained in it, taught it, cared about it,,,I see how important it really is. What a silly little thing to make such a difference, but the Dhamma is full of that sort of insight, connecting the mundane to the sacred, the tiny to the grand, the micro to the macro.
If we choose to forego the morning news and instead read a bit of Dhamma or poetry what a difference that makes. Tame, train, guard and restrain the mind and happiness is the result. Feed your head like a small child you love and it will be easier to live with.