Q. What do Disney World & Viagra have in common?  

Q: Did you hear about the guy who was arrested after he broke into a pharmacy and stole the entire stock of Viagra?

Today there is more money being spent on breast implants and Viagra than on Alzheimer's research. This means that by 2020, there should be a large elderly population with perky boobs and huge erections, with absolutely no recollection of what to do with them.