Hygiene
At noon he takes a very simple lunch at his club, or at some downtown restaurant. The lunch usually consists of a bowl of bread and milk. He remains at the office until late in the afternoon, and before dinner he takes some exercise. In winter, he skates when possible. And at other seasons of the year he nearly always drives in the park or on the avenues. Mr. Rockefeller has great faith in fresh air as a tonic.