A long time ago, people a way to create a nice smell. They put nice-smelling wood or leaves into a fire. A nice smell through the smoke. That is how we got the word perfume. In Latin “per” means “through”, and “fumus” means “smoke”. Scientists are finding that some smells make people feel better. They help us to relax, to sleep, or to feel happier. Scientists found that the smell of apples with spices can make our blood pressure go down. In the future, we may use perfume in a completely different way.