Bristol news. [volume] (Bristol, Va. & Tenn.) 1867-189?, 1870-01-14
stismti6e.
Connection Beticeen Food and
AniIudL Ener1U.

hesHsWe AIbCfUU'
Baron Liebig thus explains the principles
which govern the relation between the food
OF man and his warmth and activity In
different ATTITUDES of the earth.
In the animal body the food is the fuel
with proper supply OF oxygen we obtain
the heat given out during the combustion
Of that fuel. In wintr, when we tske ex-
rrcise in cold atmosphere, and when, con.
scquenty, the amount of inspired Oxygen
increases, the necessity for food con aiming
carbon aud hydrogen increases in the same
ratio 4; and by gratifying the appetite thus
excited, we obtain the most efIceat protec-
ton against the most piercing cold. We
expire more carbon ut n low than at high
temperature, and reqairc more or less car
bon in orr food in the came proportion. -
Consequently, more il respired in Sweden
than in Sicily, and in Germany en- eighth
more in winter than IT, summer.
Even IL an eqJal weight of food il cou-
sumed in hot and cold climates, Iniaito
Wisdom has ordained that very unequal pre-
portions of carbon shall be taken in it, The
fruits used by the Inhabitants OF southern
climcs do not contain in fresh state more
than twelve per ceni. OF carhoi while the
blubber aud train oil, which feed the inhabi.
tants Of the polar regions, contain sixty-six
TO eighty per cent. of that element. From
the same cause it is comparatively easy to
be temperate ia warm climates, or to lear
hunger for ~ To- z ine under the equator (;
but cold and hunger unitel yey soou pros
luce exhlus on. A starving m,n Is very
s. on frozen to death.
Gu c,oeins il merely au equival FOR a
certain amount OF food. The more warmly
we are clothed the less urgent becomes the
I r. r.. 4 -, 1.sg ssfl ,s.. 3
| by cocling aud consequently the amount
of h at to be supplied by the food, are di-
minished. Ii We were TO 60 naked. like
certain savage tribes, or If in hunting OF
f,hing We wcro exposed 20 the same
dcgie. Of cold as the people in Arot'
Ia itu les, We should b. abe with
ea SC 10 consume half Of a calf, and perhnp.
a dozen of tall1w candles into tho bargain
daily, rs warmly -clad travellers have rela
ted with astonishment Of Inc of these
peop'e. We sholli then also DO able Il
tase the same quantity of brandy or train
il without bal effects. becIu,e the carbon
aud h, drogen of these =, Distances would
only sutiioe to keep up the equilibrium be
tween tho external temperature AMI tina
Of our bodies.
1t appears then from what has be N said
that le quantity Of food required is regula
ted by the number of rospirations, by TIA
temperature Of the air, and by the amour
Of heat given OF to tue surrounding mcli
um. The unequal loss of heat in summe
and winter IN cold and hot climates
hot the only cause which renders neccssar
unequal quantities Of food. There ere othe
causes, ksuch rs bodily exercise, and a
kin1s Of labor and exertion. The consumT
ton OF mechanical force in the body is o.
ways equal to waste OF matter in tho body
and this must be restored in the food. Whe
a man or an animal works, a certain amour
/ OF food must DO added increased wor
and effort without u corresponding increas
of food, cannot be continued for any lengt
{ Of time. Good Hedlh