THE ACT OF BREATHING
llow often do we respire? The number of our respirations per minute depends upon our age: . Respirations Age. per minute. One year 44 Five years & From 15 to 20 years 20 From 20 to 25 years 18 2 - From 25 to 30 years 15 From 30 to 50 years 18 Muscular exertion always increases the frequency of respiration, ihc liighei tlie temperature the more frequent is the respiration. It has been shown that with higher atmospheric pressures than tlie normal the frequency of respiration is diminished, while the depth of each inspiration is increased. The frequency of respiration diminishes until dinnertime, reaches its maximum within an hour of feeding, and thereafter falls again. If dinner is omitted no rise ot frequency occurs.
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Bibliographic details
Nelson Evening Mail, Volume LXIV, 3 January 1931, Page 4
Word Count
126THE ACT OF BREATHING Nelson Evening Mail, Volume LXIV, 3 January 1931, Page 4
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