In the future you’ll have real time data for every health metric. Blood pressure, heart rate, blood chemistry, vitamins, minerals, body weight, temperature, hydration level, etc. An app will analyze this data and report it to your display where it will be constantly updated. Your health won't be such a mystery to you. The idea of a routine checkup where you get weighed and tapped on the knee and told to exercise more will seem silly to you, in the future.
In the future you’ll be gratified to watch your cells being nourished, rather than by your belly feeling full. You won't be so dreadfully ignorant about diet. You’ll be eating superfoods and practicing healthcare independence.