When we are inside our homes, we can improve our moods and the atmosphere by switching up the scents in our space. Smelling citrus-y smells inside is a plus. The sort of orange smell that’s produced by the fruit that we eat (technically known as “sweet orange”) has been linked to feeling less stressed, more relaxed. Lemon scents have been tied to enhanced brain/cognitive performance. And a real citrus smell bonus: Research has shown that when men smell grapefruit and…