It has
also been found, that as each bolus, or mouthful, enters the stomach,
the latter closes, until the portion received has had some time to
move around and combine with the gastric juice, and that the orifice
of the stomach resists the entrance of any more till this is
accomplished. But, if the eater persists in swallowing fast, the stomach
yields; the food is then poured in more rapidly than the organ can
perform its duty of preparative digestion; and evil results are sooner
or later developed. This exhibits the folly of those hasty meals, so
common to travelers and to men of business, and shows why children
should be taught to eat slowly.
After taking a full meal, it is very important to health that no great
bodily or mental exertion be made till the labor of the stomach is
over. Intense mental effort draws the blood to the head, and muscular
exertions draw it to the muscles; and in consequence of this, the
stomach loses the supply which it requires when performing its office.
When the blood with its stimulating effects is thus withdrawn from the
stomach, the adequate supply of gastric juice is not afforded, and
indigestion is the result.
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