WHY!!??

Why do old people smell so bad? I have old people in and out of my office all day long, and I have found that when they reach the age of 70 and up, they start to smell. It is either a musty smell of death, or somthing like old denture smell. That is a smell that reminds me of my grandfather. I don't know what it is exactly. Maybe the glue that keeps their teeth in? Or maybe just fake teeth smell. Younger people don't smell like this! I have people 50-60 years old who smell young and fresh. Who knows, but I am sick of smelling old people!