Every organ in your body performs a specific, important function, and that includes your kidneys. People are born with two kidneys, although the vast majority of people can stay healthy with just one. However, if your kidneys start to deteriorate and lose function, it can have disastrous effects. Your kidneys filter toxins out of the body, a job that is clearly very important. If you are guilty of any of these 10 habits, change them for the sake of your kidneys.