When it comes to health and diagnostics features, there are a plethora of synonyms to choose from. For instance, you can employ the term wellness instead of health. The word wellness describes an overall sense of wellbeing, not only the absence of illness. For diagnostics, one could use screening or analysis as synonyms. These words help to indicate a thorough examination or evaluation of a person's symptoms to arrive at a proper diagnosis. You could also use the phrase medical assessment or physical exam to describe the process of diagnosing health problems. Using these synonyms will help to make your content more engaging while conveying the same meaning.