That was the secret the Yankees didn't know about. It was goat's milk. We had an old man in my area who was married to a younger woman and they were still having kids until the old man was about 90. When asked the secret, the old man replied that he drank goat's milk. Some of the other folks thought the old man just had good neighbors. Definitely do not drink goat's milk and take viagra at the same time.
Elmer