Plain Facts for Old and Young by John Harvey Kellogg

and of the most simple food, as fruit, or fruit and bread. Nothing should be eaten within four or five hours of bed-time, and it is much better to eat nothing after three o'clock. The ancients ate but two meals a day; why should moderns eat three or four? If the stomach contains undigested food, the sleep will be disturbed, dreams will be more abundant, and emissions will be frequent. A most imperative rule of life should be, "Never go to bed with a loaded stomach." The violation of this rule is the great cause of horrid dreams and nightmare.