Word Origin & History. aphorism 1520s (especially in ref. to the Aphorisms of Hippocrates), from M.Fr. aphorisme, from L.L. aphorismus, from Gk. aphorismos definition, pithy sentence, from aphorizein to mark off, divide, from apo- from + horizein to bound..
Further information: List of causes of shortness of breath. While shortness of breath is generally caused by disorders of the cardiac or respiratory system, other systems such as neurological, musculoskeletal, endocrine, hematologic, and psychiatric may be the cause. DiagnosisPro, an online medical expert system, listed 497 distinct causes in October 2010.
Trouble breathing can be due to a heart attack, heart failure, lung disorders and more, but breathing difficulty may also be due to anxiety - especially severe anxiety. Trouble breathing may occur because of a serious heart or lung condition. It may also occur solely because of your anxiety and its related symptoms. Take my 7 minute anxiety test to learn more about whether your breathing difficulty is caused by anxiety.