Nicole that IS a scary thought, and a good argument for free public health care. A word of caution though, if I may - I've heard it said that if we only understood just how powerful our thoughts are, we would guard them MUCH more carefully.
Thoughts become beliefs, and beliefs become self-fulfilling prophecies. If people truly believe that they are going to 'catch' two colds every winter for example, they probably WILL 'catch' them. That's the power of suggestion, the power of our own minds - and strong emotions like fear amplify that power, making it more likely that our thoughts WILL manifest into physical reality.
I really like discussing this, but I'm guilty of thread-drift already (sorry!) so I'll stop now...