Iowa state bystander. [volume] (Des Moines, Iowa) 1894-1916, 1913-10-24
RADIATION OF BODY
Presentation or the Lack 0, \
cools and Heats. :.
In The Tropics Or AretIcs remn....
10 Governed by Evaporatl on--Hn,.
olseomforts Of Summer or N.
~ ter Are Overcome.

- - - q
It Ks we'll to know what raise, -.
what lowers the bodily temnsrs..aa
In summer we all want to tssn ~
cool as possible. and We should ~
what will tend not merely to mats av y.
feel cool but really to be cool
Nv Except In sickness, when tho a.,
erature OF the body is Increased =.
many degrees and is called fever -.
are never so hot as at the NOW, ".
we are born. The Temperature =.
new born baby is higher than M,
OF Its mother, rising to 1O2 desras.
Fahrenheit, but d. ng the first A..
1t goes down rapidly as far AZ or
and then rises again to a little mo.'
than the normal temperature Of ".
adult. With this exception age do..
not change the temperature, which !.
In the normal man ss.6 on the svs,
age.
The temperature varies as much :.
two degrees In the "a hours n.
minimum Is 97.5, and is reached =
about q. m, while the maximum
1915, is attained at four In the atte.
noon. It is notable that fasting =, I
sleep does not alter these temper.
lures; those persons, however WIN
work at night and rest by day revers.
the order Of the variations in TENN \
erature. Thus bakers who work a
night have the highest Temperature
at 4 q. m. and the minimum toward
evening.
In tropical countries the ayeapa
normal temperature is 1904 slightly
higher than In the temperate zones
In the arctic the normal Temperature
is lower. Norwegians, who live in a
cold climate. have an average tenn.
erature of 97.7. @
These variations are certainly due
to the difference in the Temperature
of the air and not, as some have
thought, to differences Of race, for
Norwegians attain the same tempera.
ture as natives when they live In the
tropics.
Muscular labor has considerable et.
feet upon the temperature ard may
raise 1t as much as two degrees. Ono
scientist observed that with normal
exercise the temperature went up
from 97.7 to 100. In certain excep
tional cases the temperature rises
even more. A runner has been found
to mark 103 after a hard race In.
tellectual labor causes rise in temp
erature. Weiss shows that a man
sitting down to study hard with
temperature of 81 raises it one degree
to SO by 40 minutes of brain work. 4
The maintenance Of the tempera.
ture about a certain standard in the
warm blooded animals, notwithstand.
ing the variations of external temp
erature, proves the existence Of some
kind OF internal regulator by which
the animal lights against the tendency
to increase or diminish his own heat
The resistance of warm blooded AMI.
mails against cold is considerable. IN Il
polar regions these animals-bears, &
seals, musk oxen, dogs, etc-wlth. 4 I
stand temperatures Of 80 degrees BE-
low zero habitually, and Nansen re- /
ports that he felt no great inconVent' I
ence when the temperature was less
than 40 below. 8
The body uses two means OF fgnt
ing cold: Diminishing the loss o.
heat by radiation and increasing u
ternal combustion.
Diminution OF radiation Is brought
about by the fur of the animals ana
by mans clothing. Besides. there -
a construction of the blood vessels OF
diminution Of the irrigation OF inc
skin. which brings about cooling q
the skin and as consequence oe'
creased radiation. .9
Increase of combustion is brousns
about by increase Of muscular acus.
ity, which, as we say, keeps y.
warm" and by the eating OF fats anu
other foods of high carbon content z5
In summer or In tropical clm'' "
We have to fight increase OF temper
ture which would arise from the Y
vasion Of the heat without or t1on
overcombustion within. The orssr
ism overcomes heat by increasing .
diation and evaporation. The d1latoa
OF the blood vessels causes the o1oou
to flow to the surface OF the Oou..
and If the temperature without oe ~, -,
higher than that OF the blood tne I've
by radiation is increased. 50,
But 1t is especially by loss o. ~s...
that the warm blooded anlma's ~ =.
vent the rise of temperature VI -
body. The cold produced by eVapO'..
ton is great, for the loss OF one
of water takes up about 0SV '@s NE
calories. II, for instance Ne -,
evaporates a quart Of water 10Y ~ y,
spiration and evaporation throukn , :.
lunEs) in ~ hours he loses GOV , 's.s
calories-i. g., enough heat ~ ~
the temperature Of 11e poono'
water ten degrees. .,.r,ons
This demonstrates inc e ax,n and
value OF evaporation through sA'n "a. ~
lungs and the necessity ior .'. a.ne
these organs in prime condition. .s. II
eially during the warm wea'ne :, 4
We are to bear, It in comfort: ]. M
obviously, then. a crime asS'u''
body to overclothe 1t!
Exaggerated Ego % ,,,s
II dare say. that nearly ,,,' ~ thsb