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The Art of Procuring Pleasant Dreams, by Benjamin Franklin

"Mankind . . . eat about twice as much as nature requires"

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The Art of Procuring Pleasant Dreams, by Benjamin Franklin

Benjamin Franklin (1706-1790)

In an essay first published in 1786, American statesman and scientist Benjamin Franklin (1706-1790) offers advice on "preserving health" and avoiding "unpleasing dreams." Consider which of Franklin's recommendations may still be worth heeding in our own time.

The Art of Procuring Pleasant Dreams

by Benjamin Franklin (1706-1790)

As a great part of our life is spent in sleep, during which we have sometimes pleasant and sometimes painful dreams, it becomes of some consequence to obtain the one kind and avoid the other; for whether real or imaginary, pain is pain and pleasure is pleasure. If we can sleep without dreaming, it is well that painful dreams are avoided. If, while we sleep, we can have any pleasant dreams, it is, as the French say, autant de gagné, so much added to the pleasure of life.

To this end it is, in the first place, necessary to be careful in preserving health by due exercise and great temperance; for in sickness the imagination is disturbed, and disagreeable, sometimes terrible, ideas are apt to present themselves. Exercise should precede meals, not immediately follow them; the first promotes, the latter, unless moderate, obstructs digestion. If, after exercise, we feed sparingly, the digestion will be easy and good, the body lightsome, the temper cheerful, and all the animal functions performed agreeably. Sleep, when it follows, will be natural and undisturbed, while indolence, with full feeding, occasions nightmares and horrors inexpressible; we fall from precipices, are assaulted by wild beasts, murderers, and demons, and experience every variety of distress. Observe, however, that the quantities of food and exercise are relative things: those who move much may, and indeed ought to, eat more; those who use little exercise should eat little. In general, mankind, since the improvement of cookery, eat about twice as much as nature requires. Suppers are not bad if we have not dined; but restless nights follow hearty suppers after full dinners. Indeed, as there is a difference in constitutions, some rest well after these meals; it costs them only a frightful dream and an apoplexy, after which they sleep till doomsday. Nothing is more common in the newspapers than instances of people who, after eating a hearty supper, are found dead abed in the morning.

Another means of preserving health to be attended to is the having a constant supply of fresh air in your bedchamber. It has been a great mistake, the sleeping in rooms exactly closed and the beds surrounded by curtains. No outward air that may come in to you is so unwholesome as the unchanged air, often breathed, of a close chamber. As boiling water does not grow hotter by long boiling if the particles that receive greater heat can escape, so living bodies do not putrefy if the particles, so fast as they become putrid, can be thrown off. Nature expels them by the pores of the skin and lungs, and in a free, open air they are carried off; but in a close room we receive them again and again, though they become more and more corrupt. A number of persons crowded into a small room thus spoil the air in a few minutes, and even render it mortal as the Black Hole at Calcutta. A single person is said to spoil only a gallon of air per minute, and therefore requires a longer time to spoil a chamberful; but it is done, however, in proportion, and many putrid disorders hence have their origin. It is recorded of Methuselah, who, being the longest liver, may be supposed to have best pre­served his health, that he slept always in the open air; for when he had lived five hundred years an angel said to him: "Arise, Methuselah, and build thee an house, for thou shalt live yet five hundred years longer." But Methuselah answered and said: "If I am to live but five hundred years longer, it is not worth while to build me an house; I will sleep in the air, as I have been used to do." Physicians, after having for ages contended that the sick should not be indulged with fresh air, have at length discovered that it may do them good. It is therefore to be hoped that they may in time discover likewise that it is not hurtful to those who are in health, and that we may then be cured of the aerophobia that at present distresses weak minds, and makes them choose to be stifled and poisoned rather than leave open the window of a bedchamber or put down the glass of a coach.

Confined air, when saturated with perspirable matter, will not receive more, and that matter must remain in our bodies and occasion diseases; but it gives us some previous notice of its being about to be hurtful by producing certain uneasiness, slight indeed at first, such as with regard to the lungs is a trifling sensation and to the pores of the skin a kind of restlessness which is difficult to describe, and few that feel it know the cause of it. But we may recollect that sometimes, on waking in the night, we have, if warmly covered, found it difficult to get asleep again. We turn often, without finding repose in any position. This fidgetiness (to use a vulgar expression for want of a better) is occasioned wholly by uneasiness in the skin, owing to the retention of the perspirable matter, the bedclothes having received their quantity, and being saturated, refusing to take any more. To become sensible of this by an experiment, let a person keep his position in the bed, throw off the bedclothes, and suffer fresh air to approach the part uncovered of his body; he will then feel that part suddenly refreshed, for the air will immediately relieve the skin by receiving, licking up, and carrying off the load of perspirable matter that approaches the warm skin, in receiving its part of that vapor, receives therewith a degree of heat that rarefies and renders it lighter, by cooler and therefore heavier fresh air, which for a moment supplies its place, and then, being likewise changed and warmed, gives way to a succeeding quantity.

Concluded on page two.

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