Clarke courier. [volume] (Berryville, Va.) 1869-1997, 1906-08-08
REST AND EXERCISE.
UNDERWORLD IS QUITE As HARMFUL
As OVERWORK

An Excess oS RcpoSe BrirES About n
Loss Of EncrEy-To BE Beneficial
Exercise should he Stimulate g and
Not Exhaustive.
Undcrwork is quite as harmful as
svcrwork- But proper rest Is OF ex-
rccding Importance. Any excess OF
work decreases instead OF increases
strength. When muscles work heat is
generated. They burn among the prod
ucts Of thclr combustion. being car
Lonic and some other acids. Now,
these acids hinder further action, rs
the product of the combustion Of coal
ashes deadCns a fire. The sensation
we experience from this physiological
clOcging Is fatigue natures warning
10 rest or suffer the consequences. II.
when fatigue Is felt. further action
ceases, the blood lmpcuctrating tho
muscles carries away their products.
Fatigue thcn disappears and tho mus
cles are in condition 20 renew their
activity. So periods OF rest after OK
ertion are absolutely necessary.
In some muscles. like those Of tho
heart and o.,athiug organs the periods
of rest between the rhythmical efforts
balance the effects OF the efforts; hence.
In our normal condition. our heart and
lungs never feel tired.
There is every reason To believe that
when fatigue is profound and too fire.
Qucntly repeated renovation Is not
thorough, and there Is consequently n
loss OF strength
Constant physical strain. even though
IL hc slight. saps nervous force. To
feel we'll moro energy must ho formed
than Is expended Now, while work,
by stimulating the heart and lungs.
produces energy, ut the same time II
eXpends il, yet during work moro en-
crgy Is necessarily expended than IS
formed. Energy accumulates In the
rest after work, but only when rest IS
sufficient VIII the total energy formed
| exceed the total expended. When work
/ is excessive rest cannot be sufficient
/ and We have loss OF energy.
On tho other hand, If rest be excess
/ I've, as when one works too little, we
/ Stin have a loss OF energy, for in this
/ case, although the expenditure Is com
\ parativcly slight il Is constant, and 1t
/ is not fully reformed, because there IS
/ little stimulation Of the sources Of en-
ergy.
Unless rest has been preceded by
work, but little energy forms in Quies-
Ccnco.
To he beneficial exercise should he
stimulative and not exhaustive Let
me explain just what mean. An eX-
erclSc Is stimulatiVo when the fatigue
/ caused by IL Is partial and is at the
same time exciting enough Ia attract
much nutrimcnt and oxygen 70 the
parts involved. Thus VIII the gain cx-
coed the loss. All vigorous exercises
are stimulative. They cannot be cX-
haustive, for, being vigorous. they re-
Quire IN their performance fairly fresh
muscles. One has to discontinue such
exercise when but partially tired. They
are stimulativc, because the blood flow
TO parts vigorously eNerted IS far great
er and moro prolonged than would bC
the blood flow TO parts slightly eX.
erted. Exhaustive exercises are those
that are prolonged for many hours. and
these. not being vigorous. may be con
tinucd IN the point Of extreme fatigue
Economy of energy. which we hear So
much about, Is desirable only when one
performs rs much work as be should
and when, therefore, any excess Is In
furious. Such n one may acquire the
habit of resting. He should, when hC
can. at odd times during the day. thor
oughly relax himself. learn TO take
things easy. DO not rush and teal
when mere habit IS tho only excuse fol
It, Some persons so always as though
for doctor or to catch train. Deli
cate women. oppressed with the strair
Of homework. would be benefited 10y
breaking their work with occasional
intervals of rest They should sit whcI
not Obliged To stand and lean back II
chair when they need not he bolt vi