Proper breathing is fine, but
unless it is also accompanied by proper eating it does not bring the
best results.
The atmospheric air contains about four parts of carbonic acid gas to
10,000 parts of air. The exhaled air becomes quite heavily charged with
this gas, about 400 to 500 parts in 10,000. It does not take long before
the air in a closed, occupied room is so heavily charged with this gas
and so poor in oxygen that its constant rebreathing is detrimental. The
blood stream becomes poisoned, which immediately depresses the physical
and mental powers. Warning is often given by a feeling of languor and
perhaps a slight headache. People accustom themselves to impure air so
that they apparently feel no bad effects, but this is always at the
expense of health. The senses may be blunted, but the evil results
always follow. To keep a house sealed up as tightly as possible in order
to keep it warm saves fuel bills, but the resultant bodily deterioration
and disease cause enough discomfort and result in doctor bills which
more than offset this saving. It is poor economy.
A constant supply of the purest air obtainable must be furnished to the
lungs; otherwise the blood becomes so laden with poison that health, in
its best and truest sense, is impossible.
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