The physiology of digestion considered with relation to the principles of dieteticsCombe, Andrew
Science
The physiology of digestion considered with relation to the principles of dietetics
Combe, Andrew
Diet; Digestion
In thus punishing us with the pangs of indigestion as a warning to
more reasonable conduct, Providence displays the purest beneficence.
To place this in a clear point of view, let us suppose digestion to
continue perfect, notwithstanding the daily reception of an excess of
food into the stomach, the result would necessarily be the regular
formation of an undue quantity of chyle; this, in its turn, would
produce an excess of blood throughout the whole system; and the
individual would thus exist with all his functions in a state of
constant oppression, and in continual danger of the rupture of a
bloodvessel, till, from mere fulness, some active disease would be
excited, requiring the instant and vigorous use of the lancet for its
relief, or very probably cutting short life. If, then, man cannot
restrain his appetites, and effectually subject them to the control
of reason, another check against continued aberration is required,
and, fortunately for us, it is to be found in the refusal of the
stomach to continue to digest much more than the quantity demanded by
the wants of the body. In practical life we meet, in fact, with both
results. There are some persons constituted with such vigorous powers
of digestion that no quantity of food oppresses their stomachs. If they
eat habitually more than what is required to supply waste and sustain
the system, they speedily suffer from repletion, or some one or other
of the diseases arising out of its existence, such as inflammation,
apoplexy, rupture of bloodvessels, enlargement of the heart, or morbid
growth in some organ of the body. In the greater number, however, of
those who exceed in quantity, the stomach itself becomes enfeebled
by the over-exertion to which it is subjected, just as the muscles
do from excess of labour; and the consequence is impaired digestion,
which prevents the food from being duly converted into chyle, and thus
protects the system from the fulness which would otherwise be induced.
Accordingly, it is a familiar truth, that those who eat most are not
always the best nourished,--and that, on the contrary, the stoutest men
are often those who eat comparatively little.
Public-domain text, read in full here on John Shaqi.
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