Have you ever wondered why your doctor asks you to do odd things like touch your nose during an office visit, then scribbles notes in your chart? It's because there are many physical tests that can tell whether your body is functioning as it should. While we tend to leave it to doctors and medical tests to figure out if something's wrong, we can actually use many of these checks ourselves to determine whether all systems are go. Here, five odd medical tests you can do at home.
the index finger/ring finger length test was the most interesting to me