When you get to 50+ and you go to the doctor, he has a new attitude. He has in his mind a whole list of things that are statistically prevalent in over 50 people but there are no statistics for the subdivision of healthy vs overweight couch potatoes. So, the doctor simply looks and finds things wrong with you that he expects, and starts to medicate you. If you're over 50 and don't fit the norm, you owe it to yourself to carefully re-consider any diagnoses.