Physical attraction is a term we usually associate with the first stage of a romantic relationship. However, there are many synonyms that can describe the same feeling. Some of these include chemistry, magnetism, allure, appeal, enchantment, fascination and charm. Physical attraction has a strong biological component, as it is influenced by our sense of smell, pheromones and testosterone levels, among other factors. While physical attraction is undoubtedly important, it's worth noting that it's just one aspect of a fulfilling romantic connection. Emotional attraction, shared values, mutual respect and communication are critical elements that make relationships work in the long run.