Two old guys, one 80 and one 87, were sitting on a park bench one morning.
The 87-year-old had just finished his morning jog and wasn't even short of breath.
The 80-year-old was amazed at the guy's stamina and asked him what he did to have so much energy.
The 87-year-old said, "Well, I eat rye bread every day. It keeps your energy level high and you'll have great stamina with the ladies."
So, on the way home the 80-year-old stops at the bakery.
As he was looking around, the lady asked if he needed any help.
He said, "Do you have any rye bread?"
She said, "Yes, there's a whole shelf of it. Would you like some?"
He said, "I want 5 loaves."
She said, "My goodness, 5 loaves ... By the time you get to the 3rd loaf, it'll be hard."
He replied, "I can't believe it, everybody knows about this stuff but me."