A 77-year-old had just finished his morning jog and wasn't even short of breath.
His friend which was 70 years old was amazed at the guy's stamina and asked him what he did to have so much energy.
The 77-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 70-year-old stopped at the bakery.
As he was looking around, the sales 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 everybody knows about this shit but me."