Have you decided to add some art to your life? Neuroscience research makes it clear when it’s best to add what: Looking at nature scenes—in paintings, in photographs, etc.—helps you mentally refresh after you’ve exhausted your brain doing knowledge work. What nature scenes work best? Ones that are clearly recognizable as nature, whether they have a few manmade elements in them (say a quiet lane or a barn seen at a distance) or not. Clumps of trees with branches that…