http://www.cnn.com/2013/11/06/us/paralyzed-indiana-deer-hunter-ends-life/index.html?hpt=hp_t1

Through a healthcare directive you can choose which types of medical care you do or do not want if you have a terminal illness or are persistently unconscious.  It’s important that your wishes are known so that they can be followed.  The above story is an example of why it’s important for people of all ages to think about these scenarios.