Am I healthy (2015-2016)

The so-called "health is the greatest wealth." As society becomes more prosperous and progresses, urbanites also pay more and more attention to health. Everyone wants to live healthy, free from disease and pain, but how much do you know about your own body functions and health conditions? With advanced technology and flood of information, there are many self-test health methods circulating in the market. Is there a medical basis for them?