I have to admit, I'm a sucker for health tests. Really, I want statistics to show that I am a healthy individual.
This article on simple health tests you can do at home is really interesting because it reveals the risks of having a poor result for each of the tests. Even though it doesn't offer many solutions if you do get a poor result, I'm going to offer you one big solution: move more. Find an activity you really like to do, and do it more often.
You may not be able to change how you look on the outside, but you can change how you feel on the inside.