The following advertisement appeared in a physical culture magazine:

"Here's a good test for stomach muscles. Clasp your hands over your head and place your feet together on the floor. Now bend to the right at the waist as you sit down to the left of your feet. Now by sheer muscular control, haul yourself up, bend to the left and sit down on the floor to the right of your feet. Keep this up and let us know of the result."

The first letter received by the magazine said "HERNIA"