Those who cannot walk so much every day can at least do so on Sundays. Once a man who was suffering from indigestion went to the doctor to take medicine. He was advised to walk a little every day, but he pleaded that he was too weak to walk at all. Then the doctor took him into his carriage for a drive. On the way he deliberately dropped his whip, and the sick man, out of courtesy, got down to take it. The doctor, however, drove on without waiting for him, and the poor man had to trudge behind the carriage. When the doctor was satisfied that he had walked long enough, he took him into the carriage again, and explained that it was a device adopted to make him walk. As the man had begun to feel hungry by this time, he realised the value of the doctor's advice, and forgot the affair of the whip. He then went home and had a hearty meal. Let those who are suffering from indigestion and kindred diseases try for themselves, and they will at once realise the value of walking as an exercise.